Book NITROX class online now!
M.A.I.S.I. Scuba
178 E. Main St, Milford, MA 01757 maisi.scuba@gmail.com
857-394-3748
2026 Class schedule now available. Now Booking Classes Online!
Massachusetts Association of Independent Scuba Instructors, LLC
178 East Main St., Milford, MA 01757

We installed a Mako BAM06H, 13 CFM, 6000 PSI, air compressor. It has an advanced air filtration and water separation system. We provide "cold" fills. Our fill station meets Class E & Oxygen Compatible air purification requirements and has bi-annual scheduled independent air sample testing with the results posted. We blend our Nitrox using a Nitrox stick and three separate digital monitoring points. Our compressor is on a regular service contract and our service records are on site for your inspection (Air Certification). Our fill station has 6 fill whips for both yoke and DIN valves. We also fill pure O2 rescue tanks, Helium, and TriMix. Our Oxygen is Aviation Grade and our Helium is Grade 5 UHP. We use a Haskel 2-stage gas booster.
2025 Gas Rates Price List:
Air, Nitrox, Trimix, Oxygen, and Helitrox
Oxygen (Aviation Grade)........................................ $.75 per CF
Helium (UHP Grade 5)............................................ $2.40 per CF
Nitrox (up to 36%)................................................... $17.00 per fill
Nitrox (37% to 40%)................................................ $19.00 per fill
Air (Class E Standard)............................................. $12.00 per fill
Air Fill Card (10)...................................................... $100.00 ea
Nitrox Fill Card (10)*................................................ $150.00 ea
Paint Ball Tank Fill (4500psi)................................... $8.00 per fill
*Up to 36% only. Card not available over 36%
(In effect 11/22/25)
