SAS6000-25 / SAS 6000-25 Every facility utilizing respiratory equipment needs this manual. It includes operational procedures for proper use of cartridge and supplied-air respiratory systems, forms for adherence to OSHA guidelines and tips to help ensure employees’ use of respiratory equipment efficiently and safely. 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.