Captures large airborne particles and extends the life of the HEPA filter. Sold in boxes of 24 units.
No returnable if used. For more information about our return policy, please refer to the Orders and Returns.
PSQD prefilters for the air scrubber of the HEPA ZONE 24 portable work enclosure (SAH12). 24" x 12". Sold by package of 24 prefilters.
PSQD prefilters 24 x 12 are designed to optimize the performance of HEPA ZONE 24 containment units. By capturing large airborne particles such as concrete dust, spores, or wood fibers, they serve as the first line of defense in your filtration system. Their efficiency helps extend the life of the primary HEPA filter while reducing the risk of motor overload in the air purifier. These prefilters are essential for professionals in decontamination, asbestos removal, and controlled atmosphere environments.
Please note that once the package has been opened, we cannot accept returns nor exchanges.
PSQD prefilters are specifically designed to fit HEPA ZONE 24 containment units. The standard 24 x 12 inch format ensures perfect compatibility with SAH12 models. Each box contains 24 prefilters, allowing for efficient replacement management. Made from high-quality filtering materials, they effectively capture coarse particles, reducing the load on the secondary HEPA filter. Regular use improves the overall performance of the filtration system and helps maintain a healthy work environment.
Installing PSQD prefilters is quick and easy. Simply open the designated compartment in the HEPA ZONE 24 unit, remove the used prefilter, and insert a new one, ensuring it is properly positioned. No special tools are required. This operation can be completed in just a few minutes, allowing operations to continue without extended downtime.
Maintaining PSQD prefilters mainly involves regular replacement. In very dusty environments or during intensive work, it is recommended to replace the prefilter every 72 hours. In cleaner settings or with occasional use of the purifier, replacement every three months may be sufficient. A saturated prefilter increases air resistance, which can lead to motor overheating. It is therefore essential to monitor the filter’s condition and replace it preventively.
Usage tips for PSQD prefilters in HEPA units To ensure optimal filtration, it is recommended to use PSQD prefilters in compatible units such as the HEPA ZONE 24 model. Regularly monitor the performance of the filtration system and schedule replacements based on the particulate load of the environment. Store prefilters in a dry, clean place, away from moisture and contaminants. Never reuse a used prefilter, even if it appears visually clean.
In very dusty environments, every 3 days. In clean environments, every 3 months may be sufficient.
They are specifically designed for HEPA ZONE 24 units, 24 x 12 inch format. Any other use should be validated by a professional.
No. These prefilters are single-use. Cleaning is not recommended as it compromises filtration efficiency.
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 or (SAH2MA) air cleaners (SACTT2).
Data sheet
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