Ensure superior air quality in your workspace with the primary filter for HEPA Aire Bulldog air purifiers by Abatement Technologies. This 24 X 24 X 1 inch disposable filter is designed to trap particles of 10 microns and larger, extending the life of your secondary and HEPA filters while maintaining optimal purification performance. Ideal for asbestos abatement, industrial decontamination, and environments requiring strict particle control.
Sold by the pack of 50 filters.
No returnable if used. For more information about our return policy, please refer to the Orders and Returns.
Primary filter for the HEPA-AIRE® and BULLDOG® portable air scrubber by Abatement Technologies (SAH2, SAH2MA and SAH4MA) or any other model of air scrubber which requires a 24 in X 24 in X 1 in filters. Sold by the pack of 50 filters.
The HEPA Aire Bulldog primary filter is the first line of defense in your air purification system. Engineered for compatibility with models such as SAH2, SAH2MA, SAH3KLV, and SAH4MA, this fiberglass filter uses electrostatic charge to capture larger airborne contaminants like pollen, spray paint dust, textile fibers, and carpet particles. Rated MERV 4, it effectively captures 75% of particles sized 10 microns or more, allowing finer particles to pass through for secondary filtration.
Clean air starts here.
This disposable filter measures 24 X 24 X 1 inches and is sold in packs of 50, making it ideal for high-volume use in contaminated environments. Its electrostatically charged fiberglass media ensures efficient particle capture without overloading the HEPA filter. Compatible with a wide range of Abatement Technologies air purifiers—including PAS1600S, PAS2400E, BD2KL, and H5000C—it offers flexibility and reliability across various applications.
Please note that once the packaging has been opened, we cannot accept returns or exchanges.
Installing the primary filter is straightforward. Open the filter compartment of your HEPA Aire Bulldog unit, remove the used filter, and insert the new 24 X 24 X 1 filter securely. Ensure proper alignment to maintain airtight performance. Depending on contamination levels, the filter should be replaced every 8 to 72 hours or as indicated by the purifier’s alert system.
As a disposable component, the primary filter requires no cleaning. Regular replacement is essential to preserve air quality and protect the integrity of secondary and HEPA filters. Monitoring the filter’s condition and adhering to recommended replacement intervals will ensure consistent purification and extend the lifespan of your air filtration system.
For optimal results, use the primary filter in environments with high particulate concentration such as asbestos removal sites, paint booths, and industrial zones. Follow manufacturer guidelines for replacement frequency to prevent saturation and maintain continuous filtration. This filter is especially suited for professionals in air quality management and hazardous material remediation.
When replacing a HEPA filter, it is imperative to turn off the machine.
This filter plays an essential role in maintaining negative pressure, which prevents the spread of contaminants into the environment. In an active workspace, such as a construction site or clean room, it is crucial not to interrupt this pressure. The machine must, therefore, be temporarily removed and replaced by another one already equipped with an operational filter to ensure continuity of containment.
Machines remain in operation during filter changes to avoid any interruption of negative pressure in the confined area.
Replacement is recommended every 8 to 72 hours depending on the level of airborne contaminants and the purifier’s usage conditions.
It fits several models including SAH2, SAH3KLV, PAS1600S, and BD2KL, provided they require 24 X 24 X 1 inch filters.
No, the filter is designed for single use. Regular replacement is necessary to maintain effective air purification and protect downstream filters.
Need additional safety equipment? See the articles; Safety Liberty hard hat (TA14LR), Omega II minor hard hat type 1 (TA14FS), motorized respirator with 1000 protection factors (R6800PF), 3M mask protection film (R6885).
Under "Accessories" at the bottom of the page. If you're looking for work equipment, have a look at the following products: White antistatic coveralls with (V51), containment fabric (SACTT2) or (SAH2MA) air cleaner.
Data sheet
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