Apollo Bio Metal Mask White UV420 lens – Special Edition D Class

Apollo Bio Metal White UV420 D-Class Dive Mask

This Japanese-made Apollo Bio Metal Special Edition combines a white surgical-grade silicone skirt with a machined aluminium frame and UV420-coated tempered-glass lenses. The Type-D design is the smaller-fit option, aimed at petite-to-medium adult faces.

Smaller Type-D fit

With a 95 cc internal volume, the Type-D design offers a compact alternative to the regular C Class. Its double-lip skirt edge spreads contact pressure, while the downward lens angle helps you look towards your equipment. A face-fit check is still the best way to choose your mask.

Japanese craftsmanship

The slim aluminium-alloy frame is precision-machined and carefully finished in Japan. Its narrow centre bridge keeps frame obstruction low, while the soft white surgical-grade silicone skirt provides a flexible sealing surface against your face.

Tempered glass with a UV420 coating

The lenses combine tempered glass with a multilayer UV420 surface coating. Tempering strengthens the glass; the coating filters ultraviolet and some short-wavelength visible light. The peach-coloured reflection comes from that coating.

• 95 cc Type-D skirt.
• Slim aluminium frame.
• UV420 lens coating with a peach-coloured surface reflection.
• Matte silicone interior and exterior.
• Clear protective storage box included.

How the UV420 coating works

Apollo applies a multilayer coating to the tempered-glass lens surface. The coating reduces the light transmitted through the lens in the ultraviolet region and into the short-wavelength violet end of visible light, up to approximately 420 nanometres. This is the meaning of UV420: the number describes the wavelength range the treatment targets.

For diving and snorkelling, this helps reduce UV reaching your eyes through the lenses while you wear the mask. It is a useful feature for surface swimming, where reflected sunlight can add to exposure. Looking after your eyes also means wearing UV-blocking sunglasses on the boat or shore when the mask is off.

The coating produces a peach-coloured surface reflection. Apollo explains that its reflective appearance changes underwater, helping preserve eye contact with your buddy. Rinse away salt and sand before cleaning, and avoid polishing or abrasive products on the coated outer surface.

Care and storage

Compatible cleaning products

For a coated, prescription or anti-fog-film lens, use only the cleaner or defogger approved by that lens manufacturer. Gear Aid Sea Drops is not recommended for prescription lenses or anti-reflective coatings. For a separate neoprene strap cover, if you use one, we recommend Cressi Neoclean Wetsuit Wash or Revivex Wetsuit Shampoo to clean compatible neoprene. Wash that component separately according to its care label and the cleaner’s dilution instructions, then rinse thoroughly and dry in the shade. These neoprene cleaners are not a recommendation for the mask lens or a regulator assembly.

Rinse with fresh water after each use and flush away sand before touching the lenses. Use a soft cloth only after grit has been removed. Avoid abrasive cleaners or polishing the coated lens surfaces. Let the mask dry out of direct sunlight and store it with the skirt and strap relaxed.

Adjustable split silicone strap

The wide, split rear section spreads contact across the back of your head and helps keep the strap in place. Adjust the side buckles for a secure, comfortable fit without pulling the skirt tight against your face.

Technical specifications