Second stage filter for HEPA-AIRE (SAH5), 18X24X2 in

Intermediate filtration for HEPA air purifiers - Certified MERV 6 performance

Secondary filter for the HEPA-AIRE (SAH5) or any other model of air scrubber, which requires an 18 in X 24 in X 2 in filter. Sold by the pack of 12 filters.

The HEPA-AIRE SAH5 secondary filter is the second stage of the filtration system. It retains medium-sized particles while allowing finer ones to pass through, which will be captured by the HEPA filter. Its MERV 6 rating, established according to ASHRAE standards, guarantees 90% efficiency in capturing particles from 3 to 10 µm. This disposable filter is UL900 Class 2 certified for low smoke emission and fire resistance, making it a reliable choice for demanding environments.

Please note that once the packaging has been opened, we cannot accept returns or exchanges.

Capture of 3 to 10 µm particles for professional air purification.

Features of the HEPA-AIRE SAH5 secondary filter for 3 to 10 µm particles:

This 18 X 24 X 2 inch filter is compatible with HEPA-AIRE SAH5 air purifiers and other similar models. It is sold in packs of 12 units, allowing efficient replacement management. Made of cotton and polyester fiber, it offers high-performance electrostatic filtration while being disposable. Its design aims to extend the life of the HEPA filter by capturing intermediate particles.

Installing the secondary filter for HEPA-AIRE air purifiers:

In operating installations, the machine is left running during the replacement of the primary and secondary filters. Installing the HEPA-AIRE secondary filter is simple and quick. Just open the air purifier compartment, remove the used filter, then insert the new filter while respecting the airflow direction. Thanks to its standard dimensions of 18 X 24 X 2 inches, it fits perfectly and ensures optimal sealing for immediate filtration.

Maintenance of the filter for 3 to 10 µm particles:

As this filter is disposable, maintenance consists of replacing it regularly. Depending on the concentration of contaminants in the air, replacement should occur every 72 hours to 3 months or according to the replacement signal emitted by the air purifier. Rigorous maintenance helps preserve the filtration system’s efficiency and prevents clogging of the HEPA filter.

Usage tips for the secondary filter for HEPA air purifiers:

For maximum efficiency, it is recommended to use this filter in environments with medium particle concentration, such as decontamination zones, concrete workshops, or industrial spaces. Store filters in a dry and clean place before use. Never reuse a used filter, as this would compromise the purified air quality and system performance.

Sylprotec reminder on filter management during asbestos removal work:

HEPA filter management:

• The HEPA filter is a critical component of the filtration system.
• It is recommended to install a new HEPA filter before starting the project in order to perform a dop test (dispersed oil particulate) and validate its efficiency.
• If the primary and secondary filters are properly maintained, the HEPA filter can be used for a longer period, but this depends on the saturation level.

Machines indicate the need for replacement:

• By an audible signal
• Or via a differential pressure gauge, whose needle indicates a loss of pressure each time the HEPA filter is replaced, a new dop test is mandatory to ensure the filter is functioning properly and that the suction remains compliant with standards.

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.

Primary and secondary filter management:

• The primary filter must be changed twice a day during demolition periods, as it quickly becomes clogged.
• The secondary filter is replaced once a day during demolition periods.  
• Machines remain in operation during filter changes to avoid any interruption of negative pressure in the confined area.

FAQ - HEPA-AIRE 18 X 24 X 2 Secondary Filter for 3 to 10 µm particles:

What is the lifespan of the HEPA-AIRE SAH5 secondary filter?

The lifespan varies between 72 hours and 3 months depending on the level of air contamination or the purifier’s indications.

Is this filter compatible with other air purifier models?

Yes, it can be used with any device accepting 18 X 24 X 2 inch dimensions, especially HEPA-AIRE SAH5 models.

Is the secondary filter recyclable?

No, this filter is disposable and must not be reused. It should be disposed of in accordance with industrial waste management standards.

Suggested complementary products for the secondary filter for 3 to 10 µm particles:

Need additional safety equipment? See the articles; Safety hard hat (TA14LR), Okanagan minor hard hat type 1 (TA14FS), a motorized respirator with 1000 protection factors (R6800PF) and a 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 cleaners.

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