Farm pack s/m a respiratory protection kit for the avid farmer covering applications ranging from pesticides, fertilizing, wood work, grinding, glue, mechanical repair, dust, hay, and more. The sr 100 silicone air purifying respirator is intended for use when maximum safety and breathing comfort are required. The heat-treated silicone material is fda approved offering a safe and comfortable fit that molds to the shape of your face. Extremely low breathing resistance makes this mask optimal for low to strenuous work activates. One farm pack includes everything you need. features chemical cartridges protects against organic gases and vapors as well as acid gases, ammonia and methylamine face piece is made of heat-treated silicone with minimal risk of contact allergies a unique face seal design providing a high protection factor high-efficiency p100 particulate filter with a minimum 99.997% filtration efficiency against solid and liquid aerosols including oil double exhalation valve design providing only half the breathing resistance of competitive respirators can be used with our p100 filter and/or a range of chemical cartridges which can be “piggy-backed” together extra large 201 square inch p100 filter area provides extremely low breathing resistance, high air flow and extended filter life cartridge with extra large surface area provides extremely low breathing resistance and high gas absorption capacity delivered in a convenient storage box size medium/large easily adjustable v-shaped latex free elastic head harness with a large crown plate