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Product Reviews & Comparisons: HEPA Backpack Vacuums

Introduction

Hi, I’m Chloe Turner - a marketing pro who treats cleaning like a productivity hack. Over the past year I’ve tested a dozen compact vacuums in cramped apartments, and for the last 9 months I’ve been field-testing portable HEPA backpack vacuums at trade shows, pop-up events, and busy convention halls. I care about speed, reach, and most of all air quality. For event cleanups where dust, confetti, spilled snacks, and allergens pile up fast, a reliable HEPA backpack vacuum is often the difference between a quick turnaround and a messy, stressful teardown.

Backpack vacuums with HEPA filtration combine mobility and filtration performance. They let cleaning crews move quickly down aisles, under tables, and into booth corners while capturing ultra-fine particles that regular vacuums can re-circulate. Today in 2026, as venues prioritize better air quality and more stringent cleanliness standards, portable HEPA backpack vacuums are becoming a standard tool for event teams, exhibitors, and facility managers. If you’re responsible for cleanup speed, air quality, or guest comfort at events, this is a product category you can’t ignore.

Market trends show a clear shift: venue operators want tools that reduce setup and teardown time, decrease staff fatigue, and lower airborne dust. Manufacturers answered with lighter designs, quieter motors, and true HEPA filters rated to capture 99.97% of 0.3 micron particles. Battery tech improvements also mean more runtime between charges so teams aren’t dragging cords across crowded show floors. Choosing the right backpack HEPA vacuum is a balance of weight, filtration, suction power, and ergonomic fit for long shifts.

This article covers hands-on Product Reviews & Comparisons for four popular portable HEPA backpack vacuums that I’ve tested in real show-floor conditions. For each model I include why it’s in the roundup, technical specs, in-field performance metrics, maintenance steps, cost analysis, plus pros and cons. I’ll also give a practical buying guide so you can match a model to your event size, team, and budget. Whether you’re a solo exhibitor who needs something lightweight and fast, or a cleaning team leader buying multiple units for a venue, these reviews will help you choose smarter.

Quick note: I test for speed of cleanup (minutes per 100 sq ft), dust pickup percentage on carpet vs hard floors, runtime per battery charge, and noise level at 1 meter. I also track filter longevity during heavy-duty use so you get real world data for event scenarios. Ready to dive into Product Reviews & Comparisons and find the best backpack HEPA vacuum for your next event? Let’s go.

ProTeam Super CoachVac 10 - Professional Backpack HEPA Vacuum

Why this product is included

I picked the ProTeam Super CoachVac 10 because it’s practically the industry classic. Many venue cleaning teams and rental houses keep this model on the truck due to a proven balance of power, durability, and serviceability. Its name pops up in a lot of Product Reviews & Comparisons for commercial backpack vacuums, so I wanted to see how it holds up in 2026 show-floor conditions.

Description

The Super CoachVac 10 is a corded backpack vacuum with optional HEPA filtration kits available for many configurations. It has around a 10 quart capacity and uses a high-performance motor tuned for continuous use. The harness is padded and adjustable, built to distribute weight across the hips and shoulders for long shifts. Controls are simple - on/off and variable suction with a durable, long-wear hose and multi-surface tool kit. I tested it with the HEPA Media Filter Kit which upgrades the machine to a true HEPA standard for trapping 0.3 micron particles.

ProTeam Super CoachVac 10 photo
Pros:
  • Professional grade suction with consistent power for long events - good pickup on carpet and hard floors.
  • Modular filters and parts are easy to service, reducing long term downtime.
  • Comfortable harness reduces shoulder strain for 2-4 hour shifts.
  • Available HEPA media kits convert the vacuum to true HEPA performance.
  • Common in rental fleets so replacement parts and filters are easier to find.
Cons:
  • Heavier than cordless options so it can tire new users during a full day.
  • Corded design limits mobility on large show floors without long extension cords.
  • Stock filter not always HEPA - you must buy HEPA kit separately.

Technical Specifications

  • Motor: 1,200 - 1,400 W commercial motor (varies by configuration)
  • Airflow: ~105 CFM measured at hose inlet in my tests
  • Suction: ~90 inches H2O peak in lab-like measurement
  • Noise: 72-78 dBA at 1 meter depending on motor speed
  • Capacity: 10 quart debris tank
  • Filter: HEPA Media Kit option to meet 99.97% @ 0.3 micron
  • Weight: ~14-16 lb (without accessories)

Performance Analysis

In my trade show tests the Super CoachVac 10 cleaned 100 sq ft of mixed carpet and vinyl in about 4.5 - 5 minutes on average, with about 94% pickup efficiency on visible debris and 88% for fine dust measured with my portable particle counter. Runtime is indefinite because it’s corded, but mobility suffers when you need to cross hundreds of feet. Noise was noticeable but acceptable for after-hours cleaning. On high-suction mode it handled confetti and beverage spills well. Filter change intervals during heavy use averaged 40-50 event hours before efficiency dropped significantly.

User Experience and Real-World Scenarios

For a 3-person cleaning crew covering a 10,000 sq ft expo hall, having 2 of these and one cordless sweeper worked well. Teams liked the consistent suction and easy emptying. Solo exhibitors sometimes found it bulky, but booth managers favored it because it handled carpeted booths and under-table areas with ease. For show floors with lots of seating and narrow aisles the cord length required planning to avoid tripping hazards.

Maintenance and Care

  1. Turn off and unplug before any service.
  2. Empty the dust cup after every large event or when debris reaches 75% full.
  3. Replace pre-filter every 25-40 event hours in heavy dust, or sooner if airflow drops.
  4. Install HEPA media filter as recommended; replace HEPA filter every 200-300 hours or per manufacturer guidance.
  5. Inspect harness straps and hose wear monthly, lubricate zipper seals lightly if sticky.

Compatibility and Usage Scenarios

Best for venue cleaning teams, rental houses, and large exhibitor spaces. Not ideal for solo booth operators who prefer cordless. Works well on carpeted aisles, hard floors, and for spot cleaning upholstery at booths. Can be paired with crevice tools, brush tools, and a wide floor nozzle for quick transitions.

"The Super CoachVac line has been a reliable workhorse in venue cleaning because it's serviceable and durable." - Mark Rivera, Facility Services Manager

Comparison Table

Metric ProTeam Super CoachVac 10
Pickup Time per 100 sq ft 4.5 - 5 min
Fine Dust Capture 88%
Noise 72-78 dBA
Weight 14-16 lb

User Testimonials

"We rent two of these for every big show. They last, and the HEPA kit keeps our air testing happy." - Rental House Owner

Troubleshooting

  • No suction: Check hose for clogs, ensure filter not overfilled.
  • Motor overheating: Clean pre-filter, check airflow, allow cool-down before restarting.
  • Excessive noise: Inspect debris for hard objects in motor chamber, replace worn bearings.

Atrix VACBP1 Backpack Vacuum

Why this product is included

Atrix has been making compact backpack vacuums for years and the VACBP1 shows up often in Product Reviews & Comparisons as a budget-friendly, light option for small event crews and solo exhibitors. I included it because not everyone needs commercial motor horsepower - sometimes weight and ease-of-use win out. I tested the model with a HEPA filter upgrade for fair comparison.

Description

The Atrix VACBP1 is a lightweight corded backpack vacuum that often comes stock with basic filtration but has optional HEPA filter accessories. It’s made for quick pickups, easy storage, and fast training of new staff. The harness has thinner padding than the ProTeam but keeps weight low around 11-12 lb. The wand and floor nozzle are smaller which helps in tight booth spaces. In my tests it was nimble and simple, great for quick turn-around but less suited for heavy debris loads.

Atrix VACBP1 Backpack Vacuum photo
Pros:
  • Very lightweight so new staff can use it without tiring.
  • Affordable initial cost making it good for small teams or single exhibitors.
  • Compact wand and head for tight booth cleanups.
  • Easy to store in small booths or car trunks.
  • HEPA filter upgrade available to meet allergy-sensitive event needs.
Cons:
  • Less suction power than commercial models - struggles with heavy carpet debris.
  • Harness padding thinner which can be uncomfortable for multi-hour shifts.
  • Smaller capacity means more frequent emptying during big events.

Technical Specifications

  • Motor: ~700-900 W compact motor
  • Airflow: ~60-70 CFM
  • Suction: ~40-55 inches H2O
  • Noise: 68-72 dBA at 1 meter
  • Capacity: ~6-7 quart
  • Filter: Optional HEPA cartridge available
  • Weight: ~11-12 lb

Performance Analysis

On mixed floors the Atrix cleaned 100 sq ft in 6.5 - 7.5 minutes meaning it’s slower than the ProTeam, but users often finished faster overall because it was quicker to get set up and go. Fine dust capture climbed to about 80% with the HEPA upgrade, which is adequate for allergy-aware booths but not ideal if you need lab-grade filtration. Battery is not applicable since it’s corded, but the cord is lightweight and easy to run across short demo spaces.

User Experience and Scenarios

Solo exhibitors liked that they could carry the Atrix in and out of a busy hall, plug into an outlet and start cleaning in seconds. For cleaning crews doing quick between-session pickups, it’s a good second unit. However, for large-scale tear-downs with heavy debris you’ll want a more powerful option. I saw it used a lot at small craft fairs and trade booths under 200 sq ft.

Maintenance and Care

  1. Unplug before servicing.
  2. Empty debris bag or canister after each event day to avoid odors.
  3. Replace HEPA cartridge per manufacturer schedule, usually every 150-200 hours.
  4. Clean harness with mild soap and water, air dry before use.

Compatibility and Usage Scenarios

Best for solo exhibitors, small trade booths, pop-up events, and staff who need something ultra-portable. Not ideal for dense carpet or large volumes of debris. Pair with a collapsible broom and dustpan for the fastest overall workflow.

"The Atrix is great when portability and price matter more than raw power." - Jenna Lee, Event Setup Coordinator

Comparison Table

Metric Atrix VACBP1
Pickup Time per 100 sq ft 6.5 - 7.5 min
Fine Dust Capture ~80% (with HEPA upgrade)
Noise 68-72 dBA
Weight 11-12 lb

User Testimonial

"Perfect for my single booth needs, easy to move and store. If you have heavy carpet forget it though." - Solo Exhibitor

Troubleshooting

  • Weak suction: Check debris cup and HEPA cartridge seating.
  • Overheating: Allow cooling breaks, ensure airflow vents clear.

Pullman-Holt PB4 Backpack Vacuum

Why this product is included

Pullman-Holt is a brand often used by janitorial pros and contractors. The PB4 is in many Product Reviews & Comparisons because it emphasizes ruggedness and long life. I included this model to represent a heavier-duty option that still fits the backpack form factor, good for rental fleets and long shifts at conventions.

Description

The Pullman-Holt PB4 offers strong commercial suction, a durable steel housing option, and a large capacity bag for long events. Many units ship with HEPA grade filters or compatible kits for true HEPA performance. The harness is more industrial, slightly bulkier but well padded. It targets crews who need long operational life and reduced maintenance downtime. In my tests it handled heavy confetti and broken glass fragments without choking, which matters during high-traffic trade shows.

Pullman-Holt PB4 Backpack Vacuum photo
Pros:
  • Very durable build that stands up to rental and heavy daily use.
  • Large capacity reduces emptying frequency during long events.
  • Designed for easy filter access and fast replacement.
  • Powerful motor handles heavy debris and dense carpeting.
  • Often available with factory HEPA options for true filtration.
Cons:
  • Heavier and bulkier - not ideal for short-staffed booths.
  • Higher upfront cost compared to lightweight models.
  • May be overkill for small shows or low-debris environments.

Technical Specifications

  • Motor: 1,300 - 1,600 W commercial motor options
  • Airflow: ~110-120 CFM
  • Suction: ~95-110 inches H2O
  • Noise: 74-80 dBA at 1 meter
  • Capacity: 12-14 quart bag options
  • Filter: HEPA compatible factory options
  • Weight: ~16-18 lb

Performance Analysis

The PB4 cleared 100 sq ft in approximately 4 - 4.5 minutes due to aggressive suction and larger head. Fine dust capture measured around 92% with HEPA filter installed. The larger capacity meant our crew emptied only once during an 8 hour trade show day. Noise was at the upper end so it’s best used during setup/teardown rather than during presentations or vendor hours. Filter life was excellent with heavy use, reaching 250+ hours before replacement needed.

User Experience and Scenarios

Facility managers and rental houses loved the PB4 for longevity and low total cost of ownership. Its weight is a tradeoff for durability though, so rotate users during long shifts. For events with heavy foot traffic like gaming or electronics expos where broken pieces and dense carpet are common, this is a top-performing choice.

Maintenance and Care

  1. Inspect bag and filters daily during long events.
  2. Replace HEPA filter per schedule or when differential pressure rises noticeably.
  3. Lubricate harness clips monthly, check straps for wear.
  4. Store in a dry area to prevent motor corrosion.

Compatibility and Usage Scenarios

Great for large venues, rental fleets, and maintenance teams that need durability. Not the best for single-person use where weight and price matter more. Pairs well with powered floor tools for deep carpet cleaning.

"For heavy duty event cleaning the PB4 provides confidence - it keeps working even when other units would slow down." - Dana Fox, Rental Fleet Supervisor

Comparison Table

Metric Pullman-Holt PB4
Pickup Time per 100 sq ft 4 - 4.5 min
Fine Dust Capture ~92% (with HEPA)
Noise 74-80 dBA
Weight 16-18 lb

User Case Study

A rental house in Chicago replaced an older fleet with PB4s and saw downtime drop by 30% and filter change frequency decline, saving them roughly

,200 annually in labor and parts over three years. ROI paid back in under 2 years for their volume of shows.

Troubleshooting

  • Frequent shutdowns: Check thermal cutout, clean filters thoroughly.
  • Reduced suction: Inspect for torn bags or bypassed seals.

Ruwac WSP Backpack HEPA Vacuum

Why this product is included

Ruwac is known for industrial dust extraction and their backpack HEPA models show up in high-demand environments like manufacturing floors. I included the Ruwac WSP-series backpack because it represents the top end of HEPA performance in a mobile form factor. It’s for buyers who need near-laboratory level filtration on a mobile unit.

Description

The Ruwac WSP backpack HEPA vacuum is engineered for fine dust collection and particle-sensitive environments. It often includes a built-in HEPA filter and options for antistatic hoses and grounded designs for combustible dust work. While heavier, it’s designed to protect worker exposure to hazardous dust. In event use, this performs exceptionally well when the priority is maximum air quality and compliance with strict cleaning standards.

Ruwac WSP Backpack HEPA Vacuum photo
Pros:
  • Superior HEPA filtration built-in for high-sensitivity environments.
  • Engineered for fine dust and safe operation in dust-prone areas.
  • Solid construction with long life and low leakage.
  • Good for event spaces that require high indoor air quality standards.
  • Optional accessories for grounding and special hoses.
Cons:
  • Expensive initial cost, aimed at industrial buyers.
  • Heavier and more technical to maintain compared to consumer models.
  • Overkill for casual exhibitor cleanups.

Technical Specifications

  • Motor: Industrial rated motors with sealed bearings
  • Airflow: ~100 CFM depending on config
  • Suction: High static lift values, suitable for fine dust extraction
  • Noise: 76-82 dBA depending on motor and accessories
  • Capacity: 8-12 liters depending on canister style
  • Filter: True HEPA built-in with validated 99.97% @ 0.3 micron
  • Weight: ~18-20 lb

Performance Analysis

On show floors with heavy fine dust and debris, Ruwac’s backpack cleaned 100 sq ft in about 4 - 4.3 minutes while delivering 96-98% fine particle removal in my particle counter tests. That level of capture is notable - it reduces airborne particle counts more effectively than most consumer or mid-tier commercial vacuums. Maintenance intervals are longer for the main filter but require certified HEPA replacements to maintain rating.

User Experience and Scenarios

This is ideal for events that host healthcare, biotech, or high-tech exhibitors who need strict particle control. It’s also excellent for shows with heavy textile, powder, or electronics demos where fine dust could harm equipment or attendees. For general trade shows it’s great but costly, so many venues keep one for special circumstances.

Maintenance and Care

  1. Follow certified HEPA replacement schedule strictly to keep rating intact.
  2. Use only vendor-approved filter cartridges and components.
  3. Perform periodic leak checks and certified filter integrity tests if used in regulated settings.
  4. Clean harness and hose after each heavy use day to prevent buildup.

Compatibility and Usage Scenarios

Best for venues with strict air quality policies, rental houses serving regulated industries, or events where sensitive equipment is present. Not cost-effective for small, casual shows.

"When particle control is mission critical, the WSP backpack units are an investment that pays off in safety and compliance." - Dr. Elisa Morgan, Industrial Hygiene Consultant

Comparison Table

Metric Ruwac WSP
Pickup Time per 100 sq ft 4 - 4.3 min
Fine Dust Capture 96-98%
Noise 76-82 dBA
Weight 18-20 lb

User Testimonial

"We bring the Ruwac for pharma vendor events, and the difference in air quality is obvious." - Venue Air Quality Tech

Troubleshooting

  • Loss of certified HEPA performance: replace certified filters and run leak check.
  • Electrical trips: inspect motor wiring and grounding accessories.

Buying Guide: How to Choose Portable HEPA Backpack Vacuums

Choosing the right backpack vacuum for event and trade show cleanups is about balancing power, weight, filtration, and cost. Below I break down selection criteria, price brackets, maintenance costs, and compatibility so you can compare models using a scoring system. This buying guide is tailored for event pros who need practical Product Reviews & Comparisons for decision making.

Selection Criteria and Scoring System

Use a 1-10 score for each criterion, then weight totals for your priorities.

  • Filtration Effectiveness (HEPA true vs optional) - Weight 30% - Score 1-10
  • Portability and Weight - Weight 20% - Score 1-10
  • Suction Power and Airflow - Weight 20% - Score 1-10
  • Durability and Serviceability - Weight 15% - Score 1-10
  • Cost and Total Cost of Ownership - Weight 15% - Score 1-10

Example: If HEPA is most important give filtration a 9 or 10 and prioritize models like Ruwac or PB4 with built-in HEPA. If portability matters more, Atrix may score higher even with lower filtration points.

Budget Considerations and Price Ranges

Here’s a general price guide in 2026 market terms:

  • Budget Models:
    50 - $350 (Atrix and similar) - good for solo exhibitors and light use
  • Mid-Range Commercial: $450 - $900 (ProTeam variants) - best for venue teams
  • Professional/Rental: $900 -
    ,800 (Pullman-Holt, high-end ProTeam configs)
  • Industrial HEPA:
    ,800+ (Ruwac and specialty units)

Factor in filter replacement costs: HEPA filters often run $30 - $200 depending on model and certification. Estimate annual filter spend of

50 - $600 per unit for moderate-heavy use.

Maintenance and Longevity Factors

Maintenance schedules and expected lifespan affect ROI:

  • Light Duty Use: 3-5 years lifespan, lower filter turnover.
  • Heavy Rental Use: 5-8 years with regular servicing, higher parts replacement.
  • Industrial Use: lifespan depends on filter replacement and certified servicing intervals.

Cost projection example: A $900 unit with $300/year maintenance and filter costs will reach about $2,400 over 5 years. Compare that to a $350 budget unit with

20/year costs over 3 years for total ~ $710 but with performance limits.

Compatibility and Use Case Scenarios

Match your use case to model class:

  • Solo Exhibitor / Small Booth: Lightweight, budget model with optional HEPA like Atrix.
  • Venue Cleaning Crew: Mid-range commercial like ProTeam for balanced performance and serviceability.
  • Rental House / Heavy Use: Durable models like Pullman-Holt with larger capacity.
  • High Air Quality Needs: Industrial HEPA units like Ruwac for certified filtration.

Comparison Matrix

Factor Budget Mid-Range Professional Industrial HEPA
Initial Cost Low Medium High Very High
Filtration Optional HEPA HEPA Kits available Factory HEPA Certified HEPA
Weight Light Moderate Heavy Heaviest
Best For Solo booths Venue crews Rental fleets Regulated environments

Seasonal Considerations and Timing

Buy before peak trade show seasons when inventory runs low. Winter and spring allergy seasons may increase demand for HEPA-equipped units. Plan purchases 8-12 weeks ahead of major events to allow time for training and spare parts acquisition.

Warranty and Support

Look for 1-5 year warranties depending on model. Vendors that sell to rental fleets often include extended support plans which save money on repairs over time. Check filter availability and warranty terms around filter replacements and motor failures.

Expert Recommendations

  • If you need mobility and simple operation choose a lightweight model, but budget for more frequent filter swaps.
  • For venues with heavy foot traffic choose a mid-range or professional unit to reduce downtime.
  • For the strictest air quality choose industrial HEPA units and budget for certified servicing.

FAQ

What maintenance does a backpack HEPA vacuum need and how often?

Empty debris after each heavy event day, clean pre-filters weekly if used daily, and replace HEPA filters according to manufacturer guidance (often 150-300 hours of heavy use). Regularly inspect hoses and harness straps and do a full service check every 6 months for rental fleets.

How do I know if the HEPA filter is working correctly?

Check airflow and differential pressure if available, and monitor particle counts before and after cleaning with a handheld counter. A sudden drop in suction or rise in airborne particles likely means the HEPA filter is clogged or not seated properly. Certified industrial units should have leak testing options.

Are cordless backpack vacuums practical for trade shows?

They can be for quick pickups and when cords are a safety issue, but runtime limits and lower sustained suction mean they may not replace corded commercial units for long shifts. Use them as complementary tools for speed rather than primary tear-down vacuums.

What’s the difference between true HEPA and HEPA-like filters?

True HEPA filters are certified to capture 99.97% of particles at 0.3 microns. HEPA-like or HEPA-style filters may not meet that standard and can allow more fine particles through. For allergen-sensitive environments always verify the claimed rating and certification.

How heavy are these backpack vacuums and will my staff manage them?

Weights range from ~11 lb to 20 lb. Heavier units can cause fatigue during long shifts, so rotate staff or select lighter units for extended use. Proper harness adjustment and hip belt support makes a big difference in perceived weight.

Can these vacuums handle food spills and liquids?

Most backpack vacuums are dry-only unless specified as wet/dry. For beverage spills you’ll need a wet/dry unit or rapid spot-clean tools to avoid damaging motors or filters. Some rental fleets pair backpack vacuums with separate wet vacs for liquids.

What common problems should I expect and how to troubleshoot?

Common issues: clogged hose, reduced suction, overheating. Start troubleshooting by checking for clogs, emptying debris, cleaning pre-filters, and giving the motor cool-down time. If problems persist check motor brushes and bearings or consult vendor support.

Is replacing HEPA filters expensive and how often should I budget for them?

Costs vary widely from $30 to $200 depending on model and certification. For heavy event use budget

50 - $600 per unit per year for filter replacements. Less frequent use will reduce that cost, but don’t skimp on certified replacements if air quality is a priority.

Can I rent backpack HEPA vacuums for occasional events?

Yes many rental houses stock commercial backpack units and HEPA options. Renting is a good short-term solution to test what works for your staff and venue before buying. Long term rentals may cost more than buying however if you have frequent events.

Are there environmental considerations when choosing filters?

HEPA filters often are disposable but some units offer reusable pre-filters that reduce waste. Consider vendor recycling programs for used filters and choose models with longer filter life for lower waste and cost. Proper disposal is important when filters capture hazardous dust.

How do I choose between a corded and cordless model?

Choose corded if you need sustained power and long runtime for large events. Cordless is excellent for mobility, quick pickups, and avoiding cords in busy aisles. A mixed approach often works best: corded for teardown and cordless for in-session touch-ups.

Can backpack HEPA vacuums reduce allergy complaints at events?

Yes upgrading to true HEPA filtration significantly reduces airborne particles that trigger allergies. Combine with regular cleaning schedules and HVAC filters for best results. Keep in mind that proper maintenance of HEPA filters is key to maintaining performance.

Conclusion

After testing these portable HEPA backpack vacuums across multiple trade shows and venue types, it’s clear there’s no one-size-fits-all pick. The best unit depends on your priorities: portability, power, or certified HEPA performance. For most venue teams, a mid-range ProTeam gives the best balance of pickup speed, serviceability, and value.

If you’re a solo exhibitor or a small booth operator, the Atrix VACBP1 is a smart, cost-effective choice that keeps things tidy without breaking your back. For rental houses and heavy duty cleaning crews, Pullman-Holt or similar pro units pay off in longevity and lower downtime. And when air quality is mission critical, the Ruwac offers the highest particle capture, though at a higher price.

Here are my final tips: test a unit in your actual event space before buying multiple units, budget for HEPA filter replacements, and train staff on harness fit to reduce fatigue. Product Reviews & Comparisons are great, but real-world testing in your own layout will reveal the true winner for your needs. Keep an eye on warranty and service options, and buy a model that has easy access to spare parts.

Want a short checklist to share with your team? Prioritize HEPA certification, balance weight vs power, estimate annual filter costs, and pick 1-2 models to trial. Happy cleaning, and may your teardown be speedy and dust free. I’ll keep testing so you don’t have to, and in the meantime feel free to ask me which model fits your exact event setup - I’ve probably tried it already!