The best HEPA air scrubber for most mold remediation jobs is the Abatement Technologies PRED750 Predator. It delivers up to 750 CFM of variable airflow, weighs 35 lbs with filters, and draws 1.9 amps or less, so one tech can carry it and daisy-chain units on one circuit. For more airflow plus a germicidal UV lamp, choose the Predator 1200 with UV (rated up to 900 CFM). For a heavier-duty upright unit, the PAS1200 offers variable airflow up to 900 CFM. For large commercial losses, the PAS5000 delivers up to 4,000 CFM but needs a 230V/30A circuit.

Mold remediation contractors need an air scrubber that captures airborne spores during demolition, holds containment under negative pressure, and moves easily between jobs. This guide compares four Abatement Technologies HEPA air scrubbers sold by Spycor Environmental, a remediation and abatement equipment distributor with 20+ years in the industry. Every spec below comes from the manufacturer's spec sheets and Spycor.vom's product pages.

Who this guide is for: mold remediation and restoration contractors, abatement crews, and commercial renovation teams sizing air scrubbers for professional containments. It is not a guide to household air purifiers.

Best HEPA Air Scrubbers for Mold Remediation at a Glance

The PRED750 is the lightest and lowest-draw unit; the PAS5000 covers the largest containments.

Model (Abatement Technologies)	Best for	Airflow (CFM)	6 ACH coverage (ft³)	Weight with filters	Power	Key feature
PRED750 Predator	Most mold contractors	200–750, variable	Up to 6,000–7,500	35 lbs	1.9 A max, 120V	Stacks up to 3 units; GFCI daisy-chain outlet
Predator 1200 with UV (PRED1200UV)	Higher airflow + UV	Variable, rated up to 900	Up to 8,000	70 lbs	Under 3.5 A, 120V	Germicidal UV lamp; 62–67 dBA at 5 ft
PAS1200	Residential and light commercial	Variable, up to 900	Up to 8,000	85 lbs	120V; daisy-chain on 15A circuit	Upright cabinet, swivel casters
PAS5000	Large commercial losses	4,000 peak, one speed	35,000–40,000	See spec sheet	21 A max, 230V/30A	Dual 2,000 CFM HEPA filters

How We Picked These Mold Remediation Air Scrubbers

Spycor Environmental selected these four units on the specs that decide whether a scrubber works on a real mold job:

• HEPA final filtration to capture airborne mold spores and fine particulates.
  
  
• Airflow range (CFM) that covers single-room containments through large commercial losses.
  
  
• Negative pressure capability, so the unit can be ducted out of the containment.
  
  
• Portability: weight, handles, wheels, and stackability for daily transport.
  
  
• Power draw: whether multiple units can run on a standard 15A circuit.
  
  
• Manufacturer support and spec transparency. All four are made by Abatement Technologies, which publishes airflow, coverage, and electrical ratings for each model.

We did not rank units on features the manufacturer does not publish.

The 4 Best HEPA Air Scrubbers for Mold Remediation Contractors

1. Abatement Technologies PRED750 Predator: Best for Most Mold Contractors

Verdict: The lightest unit here and the easiest to deploy in multiples, which makes it the default pick for residential and small commercial mold jobs.

• Airflow: 200–750 CFM, variable speed
  
  
• Coverage: 6 ACH in containments up to about 6,000–7,500 ft³ (manufacturer rating)
  
  
• Weight: 35 lbs with filters; built-in lift handle
  
  
• Power: 1.9 amps or less; dual-plug, GFCI-protected receptacle for daisy-chaining; 12-amp circuit breaker
  
  
• Transport: up to three units stack securely for moving on a dolly
  
  
• Controls: power indicator, filter change indicator, variable speed control

Best for: single rooms, crawlspaces, attics, apartments, and multi-unit setups on residential jobs. Not ideal for: containments over roughly 7,500 ft³ with one unit; plan multiple units or a larger model.

Shop the PRED750 at Spycor Environmental →

"Abatement Technologies PRED750 Predator portable HEPA air scrubber for mold remediation"

2. Abatement Technologies Predator 1200 with UV (PRED1200UV): Best for Higher Airflow Plus UV

Verdict: More airflow than the PRED750 in a molded cabinet that still runs on low amperage, with a germicidal UV lamp added to HEPA filtration.

• Airflow: variable speed, rated up to 900 CFM
  
  
• Coverage: 6 ACH in an 8,000 ft³ containment
  
  
• Weight: 70 lbs with filters; built-in transport dolly, non-marking rear wheels, 360° front swivel casters
  
  
• Power: under 3.5 amps at 120VAC, allowing multiple units per 15A circuit
  
  
• Noise: 62–67 dBA at 5 ft
  
  
• Build: roto-molded UL94HB flame-retardant resin with microbial growth and UV inhibitors; can run horizontally in tight spaces
  
  
• Certification: independently tested and certified to applicable UL and CSA safety requirements

Best for: mid-size containments, occupied buildings, and contractors who want UVGI alongside HEPA. Not ideal for: crews that hand-carry units up stairs all day; the PRED750 is half the weight.

Shop the Predator 1200 with UV at Spycor Environmental →

"Abatement Technologies Predator 1200 HEPA air scrubber with germicidal UV light"

3. Abatement Technologies PAS1200: Best for Residential and Light Commercial Work

Verdict: Abatement Technologies' upright workhorse, with four-stage filtration capability and swivel casters for maneuvering through tight interiors.

• Airflow: variable, up to 900 CFM
  
  
• Coverage: up to 6 ACH in an 8,000 ft³ space
  
  
• Weight: 85 lbs including filter
  
  
• Filtration: up to four stages, ending in a tested and certified 99.97%-efficient metal-frame HEPA filter (optional carbon stage for odors)
  
  
• Power: multiple units can be daisy-chained on one 15A circuit via GFCI-protected receptacles

Best for: contractors handling a mix of residential and light commercial mold jobs who want one versatile upright unit. Not ideal for: jobs where every pound counts; it is the heaviest 120V unit here.

Shop the PAS1200 at Spycor Environmental →

"Abatement Technologies PAS1200 upright HEPA air scrubber with variable airflow"

4. Abatement Technologies PAS5000: Best for Large Commercial Mold Jobs

Verdict: The highest-capacity unit here, built for warehouses, large-loss restoration, and multi-room commercial containments.

• Airflow: up to 4,000 CFM peak, one speed
  
  
• Coverage: 6+ ACH in containment areas of 35,000–40,000 ft³
  
  
• Filtration: dual 2,000 CFM HEPA filters, 100% tested and certified to 99.97% efficiency at 0.3 microns
  
  
• Power: 5 HP single-phase motor drawing 21 amps or less on a 230V/30A/60Hz supply
  
  
• Build: galvanized 20-gauge steel cabinet; 26.5 in. wide to fit standard doorways
  
  
• Certification: independently tested and certified to applicable UL and CSA safety requirements

Best for: large commercial and industrial mold remediation where one unit replaces several smaller ones. Not ideal for: sites without 230V/30A power. Confirm available power before ordering.

Shop the PAS5000 at Spycor Environmental →

"Abatement Technologies PAS5000 4,000 CFM HEPA air scrubber for large commercial mold remediation"

What Size Air Scrubber Do You Need for Mold Remediation?

Size the air scrubber by the containment's volume and your target air changes per hour (ACH). Follow the ACH in your project specification, remediation protocol, or IICRC S520 guidance; the manufacturer coverage ratings in this guide use 6 ACH.

Example 1, small containment: a 20 × 15 ft room with 8 ft ceilings is 2,400 ft³. At 6 ACH: 2,400 × 6 ÷ 60 = 240 CFM. One PRED750 covers it with room to spare.

Example 2, finished basement: a 40 × 30 ft basement with 8 ft ceilings is 9,600 ft³. At 6 ACH: 9,600 × 6 ÷ 60 = 960 CFM. That exceeds any single 120V unit here, so run two PRED750s (up to 1,500 CFM combined) or two Predator 1200s.

How Many Air Scrubbers Do You Need per Containment?

Divide the required CFM by one unit's rated CFM and round up.

Plan extra capacity: airflow drops as pre-filters and HEPA filters load with debris, so a unit rarely delivers its peak rating for a whole job. Use Spycor.com's Air Flow Calculator to size your containment, or call 1-877-293-0784 for help planning multi-unit setups.

Air Scrubber vs. Negative Air Machine: What's the Difference on a Mold Job?

On most mold jobs it is the same machine used two ways. Units like the PRED750 and PAS1200 are HEPA air filtration devices that can either recirculate air or be ducted outside the containment.

Setup	How it works	When mold contractors use it
Air scrubber (recirculating)	Pulls air through HEPA filters and returns clean air to the same space	Cleaning air inside the work area or after demolition
Negative air machine (ducted exhaust)	Exhausts filtered air out of the containment so it holds negative pressure	Keeping spores from escaping into clean areas during removal

To verify negative pressure, pair your units with a room pressure monitor. For a deeper comparison, see our guide to the best negative air machines.

Mold Remediation Air Scrubber Buying Checklist

• HEPA final filter rated 99.97% at 0.3 microns, and a cabinet sealed against filter bypass
  
  
• CFM matched to your containments, sized with the formula above
  
  
• Variable speed, so one unit handles both small and mid-size rooms
  
  
• Amp draw low enough to daisy-chain units on a 15A circuit
  
  
• Weight and handling your crew can manage: handles, wheels, stackability
  
  
• Ducting collars for negative pressure setups
  
  
• Filter availability and cost for replacement HEPA and pre-filters
  
  
• Power available on site, especially 230V/30A for units like the PAS5000

Replacement HEPA Filters, Pre-Filters, and Ducting

Every air scrubber on this list runs on consumable filters, and stocking spares keeps crews from losing a day mid-job. Spycor Environmental carries:

• HEPA filters for negative air machines (metal frame)
  
  
• Pre-filters and pleated filters
  
  
• Carbon / odor guard filters for odor control
  
  
• Exhaust ducting and accessories for negative pressure setups

Use the filter change indicator on units that have one, and confirm filter part numbers against each model's spec sheet before ordering.

Need Extra Units for One Large Job?

If a single large loss needs more air scrubbers than your fleet holds, check Spycor.com's equipment rental options before buying.

Equip Your Crew with Spycor Environmental

Spycor Environmental supplies HEPA air scrubbers, negative air machines, containment, and filtration to remediation and construction professionals nationwide, with 20+ years of industry experience. Outfitting a crew or fleet? Call 1-877-293-0784 or email support@spycor.com for multi-unit pricing.

• Not sure what size you need? Use the Air Flow Calculator.
  
  
• Browse all units: Construction / Portable Air Scrubbers

Frequently Asked Questions About Air Scrubbers for Mold Remediation

What is the best HEPA air scrubber for mold remediation?

For most mold contractors, the Abatement Technologies PRED750 Predator is the best fit. It delivers 200–750 CFM of variable airflow, weighs 35 lbs with filters, and draws 1.9 amps or less. For larger containments, the Predator 1200 with UV and PAS1200 reach up to 900 CFM, and the PAS5000 reaches 4,000 CFM.

What size air scrubber do I need for mold remediation?

Multiply the containment volume in cubic feet by your target air changes per hour, then divide by 60. A 2,400 ft³ room at 6 ACH needs 240 CFM. Use the ACH in your project spec or remediation protocol, and size with extra capacity because airflow drops as filters load.

How many air scrubbers do I need per room?

Divide the required CFM by one unit's rated CFM and round up. A 9,600 ft³ basement at 6 ACH needs 960 CFM, so two PRED750s (up to 750 CFM each) cover it. Spycor's Air Flow Calculator can do the math for you.

What is the most portable HEPA air scrubber for contractors?

Of the units in this guide, the PRED750 is the most portable. It weighs 35 lbs with filters, has a built-in lift handle, and up to three units stack securely for transport on a dolly.

Is an air scrubber the same as a negative air machine?

Often it is the same machine set up differently. Recirculating, it cleans air inside the work area. Ducted outside the containment, it exhausts filtered air and holds negative pressure, which helps keep spores from spreading to clean areas.

Does a UV air scrubber kill mold spores?

The Predator 1200 with UV adds a germicidal UV lamp to HEPA filtration. The HEPA filter is what captures airborne spores; the UV lamp is an added treatment for air passing through the unit. Neither replaces removing the mold source.

Can I run multiple air scrubbers on one circuit?

Yes, with low-amp units. The PRED750 draws 1.9 amps or less and the Predator 1200 with UV draws under 3.5 amps, so multiple units can be daisy-chained on a 15A circuit. The PAS5000 needs its own 230V/30A supply.

Where can contractors buy HEPA air scrubbers for mold remediation?

Spycor Environmental sells Abatement Technologies air scrubbers, replacement HEPA filters, and containment supplies online at spycor.com, shipping nationwide. Contractors can call 1-877-293-0784 for multi-unit pricing.