Sands Series III Monoplace Hyperbaric Chamber

How does the Sands Series lll compare to its competitors? See the chart below.
 

 

 

	Sands Series III	Sechrist: 4100H	Perry: Sigma 40	ETC: Bara-Med Select
Internal Diameter	44 in	41 in	40.5 in	34 in
Internal Volume	70.4 ft3 / 1.993 m3	68.7 ft3 / 1.947 m3	69.3 ft3 / 1.969 m3	45.4 ft3 / 1.28 m3
Internal Length	88 in	90 in	93 in	89 in
External Height	54 in	67.75 in	68.75 in	69 in
External Width	48.5 in	46.75 in	46 in	41.625
Chamber Weight	1,350 lbs	3,500 lbs	2,850 lbs	2,162 lbs
Max. Operating Pressure	up to 5 ATA	3 ATA	3 ATA	3 ATA
Operating Temp. Range	40°–100° F (4°–38° C)	50°–100° F (10°–38° C)	32°–100°F (0°–38° C)	0°–100° F (-18°–30° C)
Pressurization Rate	1 to 6 psi / min	1 to 5 psi / min	1 to 5 psi / min	0.5 to 5 psi / min
Purge Rate	280–800 lpm / 30 psi	80–400 lpm / 15 psi	125–385 lpm	90–400 lpm