Promotional value expires 120 days after purchase. Amount paid never expires. Valid only within 30 miles of zip code 53527. Appointment required. One voucher per AC unit. An additional cost of $99 per each additional AC unit. One main and return vent is included. Sanitizing and fogging is not included but may be added for an additional fee. Residential use only; not valid for commercial buildings. Maintenance cleaning using a negative air machine. Limit 3 per person(s), may buy 1 additional as gift(s). May be repurchased every 30 days. Limit 1 per visit. Valid only for option purchased. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings