Check the listing for details. Carrier OptiClean™ Dual-Mode Air Scrubber & Negative Air Machine FN1AAF. Condition: New – Open box. Listed at 695.00 USD. 18 UNITS AVAILABLE BRAND NEW NEVER USED BEING SOLD AS IS NEW NO RETURNS ACCEPTED ASK QUESTIONS PRIOR TO BIDDING PLEASE SEE PICS. $595 STANDARD SHIPPING FEES APPLY TO LOWER 48 STATES ONLY PRODUCT HIGHLIGHTS CARB (California Air Resource Board) Certified Air Cleaner 99.97% efficient, long-life HEPA filter removes particles as small as 0.3 microns Standard MERV 7 or higher pre-filter Minimum 200 CFM, maximum 1500 CFM Meets or exceeds the ASHRAE Standard 170: Ventilation of Health Care Facilities HEPA filter rack and sealing design meet air leakage requirement Vertical design for smaller footprint compared to many competitors and can be mounted and operated horizontally when necessary Portable and adaptable to nearly any appropriately-sized location Heavy-duty, lockable casters for easy transport Red lighted indicator to alert user when filters are overloaded (generally means pre-filter requires replacement) Green on/off switch illuminates to verify when running 3-second motor start delay 3-speed selector switch on 006 and 015 models for various air flow ranges 10-foot long power cord with strain relief Exhaust transition plate to standard 10-inch round (005/006 sizes) or 12-inch oval (015 size) duct included Galvanized steel, pre-painted cabinet is fully insulated 115V UL® listed Multi-Function Control Panel On/Off Switch – A green on/off switch illuminates when the unit is on and operating Filter Alert – A red light illuminates when it is time to check and/or replace one or both of the unit’s filters Pressure Indicator – Compares room/ambient pressure versus internal pressure on the back side of the HEPA filter. Sets off the red indicator light when the filters are dirty Three-Speed Selector Switch – Allows for low-medium-high air flow ranges Additional Features Locking casters and round duct transition assembly are shipped with every unit Optional Air Diffuser Kit, sold separately, helps redirect air flow and reduces sound levels up to two decibels (air scrubber applications only) Check with your equipment distributor for details