These corrective lenses can be inserted into the new M2004 Intega mask as well as M-211 Freedom One mask. Available in 0.5 diopter increments from -1.0 to +4.5 for left and right lenses.
> Available in Left and Right
> Negative Diopters: -1.0 ~ -8.0
> Compatible Masks: M2004, M2004QB, M-211, M-211QB
> Note: Some diopters may not be available in certain markets, please consult with your TUSA retailer or distributor.