Item # Qty. SAS 1070-00 Box of 24 ea Oil-Resistant-99% Filter efficiency level and effective against particulate aerosols free of oil and 95% filter efficiency level and effective against (oil and non-oil) particulate aerosols. Time use restrictions apply for oil-based aerosols. Shipping Charges are based on Zone, Weight and Dimensions. For Quantity Discounts, please scroll to bottom for prices. Discounted prices will automatically calculate when item quantity is reached when ordering.