GasShield^® POU filters.

For maximum filtration efficiency, strength and reliability, the GasShield POU filter line is the industry's first and still largest collection of all-metal filters. Which means Mott offers the greatest assurance of having the precise filter you require – whether it's Hastelloy® C-22 to withstand corrosive gases, or our latest high-flow innovations…nickel-based Sentry and all-stainless Defender POU filters.

Key GasShield POU features include:

9 log reduction value.

• Greater than 99.9999999% removal of all particles down to 0.003µm; confirmed at the most penetrating particle size of 0.08µm.

High-performance operation.

• Operating temperatures up to 450°C (inert gas).
• Able to withstand 1000 psi differential (69 bar) pressure @ 20°C.
• All units are He leak-tested to a maximum 1 x 10-9 atm cc/sec.
• Parts per trillion dry down achievable.
• >1 trillion particles retained at the rated flow with zero particles detected downstream of tested filters.
• Particle shedding of <1 particle/ft3 in accordance with SEMASPEC 93021511A-STD.

Rugged, high-quality construction.

• 5 Ra surface finish on all internal hardware components.
• Media is sintered with no binders or slurry so "the only material of construction of the media is the media."
• Minimized surface area permits required flow characteristics at >9 log particle retention.
• Filter element is designed to provide required flow at minimal pressure drop while minimizing surface area to provide virtually zero out-gassing.
• All-welded construction eliminates out-gassing which accompanies polymeric filters.

Materials of construction.

• Standard GasShield POU filters are offered with 316L stainless steel porous metal media in 316L VAR/ electropolished stainless steel or nickel housings.
• Mott also offers POU filters made of Hastelloy C-22 for use in corrosive gas applications such as HCI, HBr and WF6. We are the only filter supplier to the semi- conductor industry to offer filter media and housings in Hastelloy C-22.
• We also manufacture nickel filters capable of filtration at higher flow rates.

Clean start-to-finish packaging.

• Preconditioned with clean dry nitrogen.
• Class 100 clean room packaged. Multiple bags to ensure dryness.
• Packaging is designed to maintain the purity of the filter prior to installation.

GasShield® GasketFilter™.

Fits inside 1/4" face seal fittings.

• Available in patented NanoMetal® Nickel Media.
• Complete compatibility with most process gases.
• Eliminates size constraints.
• True 0.003µm filtration.
• Ideal for flows 1 slpm and less.
• Utilize as a component protection device.
• Maximum recommended operating temperature of 450°C (inert gas).
• Maximum differential pressure (20°C) is 1000 psid.
• Available in patented NanoMetal® Nickel Media and 316LSS.