Component	Number	Cost per unit – USD	Total cost - USD	Manufacturer/ Source of materials	Material type
Full face snorkel masks
Aria QR+	1	$89.95	$89.95	Ocean Reef, Inc./Amazon	NA
Aria Classic	1	$69.95	$69.95	Ocean Reef, Inc./Amazon	NA
Aria UNO*	1	$39.95–$49.95	$39.95–$49.95	Ocean Reef, Inc./Amazon	NA
Optical Lens Support	1	$32.95	$32.95	Ocean Reef, Inc./Amazon
Full face respirator
3M 6800		$165.85–$214.95	$165.85–$214.95	3M/Jon-Don, Global Industrial, Uline	NA
3M filters
7093CN P100	1 pair	$9.07–$13.16	$9.07–$13.16	3M/Jon-Don, Global Industrial, Uline	NA
2091 P100	1 pair	$8.30 – $10.75	$8.30 – $10.75	3M/Jon-Don, Global Industrial, Uline	NA
2071 P95	1 pair	$6.60–$7	$6.60–$7	3M/Global Industrial, Uline	NA
501 filter retainer	1 pair	$4–$5.10	$4 - $5.10	3M/Jon-Don, Uline, Amazon	NA
603 filter adapter	1 pair	$12.99	$12.99	3M/Amazon	NA
5N11 N95	1 pair	$4–$4.59	$4–$4.59	3M/Global Industrial, Uline	NA
5P71 P95	1 pair	$4.22–$5.59	$4.22–$5.59	3 M/Jon-Don, Global Industrial, Uline	NA
3D printed adapter
black polylactic acid (PLA + )	1	∼$3	∼$3	eSUN	black polylactic acid (PLA + )
XTC-3D	24 oz	$ 25.86–$ 28.98	$ 25.86 –$ 28.98	Smooth-On, Inc./Amazon	epoxy
white Somos GP resin	1	∼$12	∼$12	DSM	stereolithography resin
white E-Rigid PU	1	∼$10	∼$10	EnvisionTEC	polyurethane
3PRG7 gasket	1 pair	$4.02	$4.02	3M /Grainger	NA
Museum & Gallery Sticky putty	3 oz	$5.59	$5.59	Alcolin/Amazon	NA
Fit testing
PortaCount 8030 Particle generator 8026		$160 1 day rent**	$160 1 day rent**	TSI/Raeco Rents	NA
SurfacePro or Windows 7, 8, or 10 computer		varies	varies (rent or buy)	Microsoft or other vendor	NA
Nellcor OxiMax N-65 Pulse Oximeter		Varies, discontinued	varies	Medtronic or other vendor	NA
Drilled full face snorkel-mask grommet method
PortaCount grommet***	1	< $1	$205 (Kit SKU: 8025-N95)	TSI/TSI	NA
Universal intact full face snorkel-mask method
PVC clear vinyl tubing, A19051400ux0443	< 60 cm	< $4	$13.59 (10 m)	Uxcell/Amazon	Vinyl
1/8″ barbed nylon straight coupler, model C0-2BN	1	$1.40	$1.40 (package of 10, $13.94)	Eldon James/Amazon	Nylon