https://us.msasafety.com/pn/10042346

OptiFilter XL Type HE

• Cannot be used w/ PreFilter//Cover Assembly P/N 497098
• Do not use in atmospheres containing less that 19.5 percent oxygen, or in atmospheres immediately dangerous to life or health
• Do not wear for protection against organic vapors with poor warning properties or those which generate high heats of reaction with the absorbent material in the cartridge
• Cannot be used on PAPRs equipped with Tyvek Hood
• 99.97 percent efficient against 0.3 micron DOP
• Box of 6

WARNING:

An appropriate cartridge change-out schedule must be developed by a qualified professional, unless the cartridge/canister utilizes an end-of-service-life indicator. The change-out schedule must take into account all factors that may influence respiratory protection including specific work practices and other conditions unique to the workers' environment. If using against substances having poor warning properties, there is no secondary means of knowing when to replace the cartridges/canister. In such cases, take appropriate additional precautions to prevent overexposure, which may include a more conservative change-out schedule or using an air-supplied respirator or SCBA. Failure to follow this warning can result in serious personal injury or death. As a reference, below is a partial list of substances having poor warning properties: