ProFilter Air Filter Ready To Use (AFR 1001 00) Air Filter Part Number:AFR 1001 00 this version of a 210° Site US this version of a 210° goggle have a ventilated foam who provides enhanced ventilation for the users that constantly face fog problems due to physical activity on the snowmobile and a double lens with controlled vents allowing moist air trapped inside your goggle to quickly escape when you are riding on unforgiving terrain Use individually or hook on additional US Drypacks to build your ideal luggage system up to 70 litres reticulated foam The dual foam layers differ in foam pore size the innermost foam consists of a more dense foam to catch fine particles of sand and powder