3M 603 filter adapter to attach filters on respirators, sold by pair.

A Modular Solution for Tailored Respiratory Protection

The 3M 603 adapter is designed to hold  R5N11 or R5P71 filters without chemical cartridges. It allows the respirator mask to function as a standalone particulate filter, ideal for environments where the presence of gases or vapors is low or nonexistent. This system is particularly useful in construction, maintenance, food processing, or light manufacturing sectors.

Warning: Do not use this device with 6500 Quick-Latch respirators, as the latch mechanism interferes with filter covers and reduces filter efficiency.

Transform your respirator into an N95 with a reliable and versatile attachment.

Technical specifications of the 3M 603 adapter

The 603 adapter is made of rigid, durable plastic. It is sold in pairs and used exclusively with 5N11 (N95) filters, which must be held in place using the 501 retainers (sold separately). It is compatible with 3M respirator masks from the 6000, 7000, 7500, FF-400, and Ultimate FX series, except for the 6500 series with bayonet connectors. The R603 filter adapter can be used many times. It is a replacement part that can extend the useful life of respiratory protection equipment. This system offers a lightweight and comfortable configuration for tasks requiring N95 filtration.

Simple and Quick Installation on 3M Masks

To install the 603 adapters, simply attach it directly to the respirator mask, place the 5N11 filter, and secure it with the 501 retainers. The assembly is installed without tools and ensures a stable and secure attachment. It is essential to check the mask fit to ensure a perfect seal and optimal protection.

Maintenance and Lifespan of the 603 Adapters

The 603 adapter is reusable as long as it remains intact and functional. It requires no special maintenance but should be regularly inspected for any cracks or deformation. If damaged or worn, it should be replaced immediately to ensure user safety.

Usage Tips for Effective Respiratory Protection

Use the 603 adapters only with 5N11 filters and the 501 retainers. This system is designed for environments where particle concentration does not exceed 10 times the permissible exposure limit, according to CNESST. It is not suitable for oxygen-deficient atmospheres or environments containing gases or chemical vapors. For maximum effectiveness, pair this adapter with a properly fitted mask that complies with current standards.

FAQ about the 3M 603 adapter

Can this adapter be used with P100 filters?

No, the 603 adapter is designed exclusively for 5N11 (N95) filters. P100 filters attach directly to masks without this adapter.

Is it compatible with chemical cartridges from the 6000 series?

 No, the 603 adapter is intended for a cartridge-free configuration. It is designed to be used only with  R5N11 or R5P71 particulate filters.

Is this system reusable?

Yes, the 603 adapters can be reused as long as it remains in good condition. It should be replaced if cracked or deformed.

Additional Suggestions for the 3M 603 Filter Retainer

Do you need additional safety equipment? See the following items: N95 filter for cartridges (R5N11), P95 filter for 6000 series cartridges (R5P71), organic vapor protection cartridge (R6001), 3M acid gas cartridge (R6002), organic vapor and acid gas protection cartridge (R6003),  multi-gas organic vapor cartridge (R6006).

Under “Accessories” at the bottom of the page. If you are looking for work equipment, check out the following products: Full-face respirator (R6800), half-face respirator (R6200), full-face respirator (RFF402).

The green text corresponds to hyperlinks leading to specific safety equipment or general information.