At BoiE - We Know Indoor Air QualityMy AccountCall 800-432-4418Order/Enroll Call 800-432-4418Order/Enroll Contact BOI Environmental 1-800-432-4418 (605) 427 2647 Fax 8 A.M. - 8 P.M. CST Extended hrs: 9:00a-4:00p Sat. Mailing Address: PO Box 303, Madison, SD 57042 Location: 101 Egan Ave N, Madison, SD 57042 Map it on Google EPA Establishment Number: 99115-SD-1 BOI Environmental is a privately-held company based in Madison, SD. Better Business Bureau Accredited and Veterans Administration Approved. Our classroom and offices are located on Egan Ave. N and Central St. in a downtown historic building. Contact Form Name: Address: City/Province: State: AB AK AL AR AZ BC CA CO CT DC DE FL GA HI IA ID IL IN KS KY LA MA MB MD ME MI MN MO MS MT NB NC ND NE NH NJ NL NM NV NY NT NU NS OH OK ON OR PA PE PR QC RI SC SD SK TN TX UT VA VT WA WI WV WY YT NA Zip Code: Email: Phone: Message: Why Customers Trust BoiE We have been in business since 1999 and are well-known throughout the indoor air quality (IAQ) industry. We are an EPA-Registered Establishment #99115-SD-1, offer environmental training and manufacture the best ozone generators and hydroxyl generators available. Customers receive a 30-day money-back guarantee, a 1-year unlimited warranty and lifetime customer support. We take pride in our products and training and are always there to offer help and support. We know how much your business reputation depends on using reliable products with top-notch support if anything goes wrong. We are on the cutting edge of the industry and are always looking for ways to improve our products and offer you more value. We build the best ozone and hydroxyl generators on the market today. Every unit is assembled in-house and goes through quality control and rigorous testing before we ship. If something goes wrong or wears out, we carry every part and will offer the best solution to get you up and running quickly. We take care of our customers! © Copyright BOI Environmental Training. All Rights Reserved.