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. 2021 Oct;36(5):645–650. doi: 10.1017/S1049023X2100090X

Table 2.

Techniques that are Portable and do not Require a Power Grid

Technique Portability Requires a Power Grid Chamber Volume Cycle Time
Techniques Achieving Sterilization
Portable Sterilization Portable Nitrogen Dioxide Sterilizer14 Yes No 9L 3-8 hours
Portable Chlorine Dioxide Sterilizer15,16 Yes No n/a 30 minutes
ROSS M1 Portable Ozone Sterilizer17 Yes No 18L 45 minutes
Pressure Cooking Specially Designed Low-Cost Autoclave18 Yes No n/a 30 minutes
Local Market Pressure Cooker20 Yes No 12L 30-40 minutes
Four Local Market Pressure Cookers21 Yes No 8L 15 minutes/
16 psi
40 minutes/
13 psi
Portable Steam Sterilizer22 Yes No 8L 20 minutes
Liquid Chemical Immersion Liquid Chemicals23 Yes No n/a Up to 12 hours
Solar Driven Solar Driven Dry Heat Oven24 Yes No n/a 40 minutes
at 180°
Broadband Light-Absorbing Nanoparticles as Solar Photothermal Heaters25 Yes No 14.2L 30 minutes
UVC Light Chlorhexidine Scrub + UVC Light26 Yes No n/a 45 seconds
Techniques Achieving High-Level Disinfection
Boiling Boiling27 Yes No n/a 20 minutes
Liquid Chemical Immersion Liquid Chemicals23 Yes No n/a 15-30 minutes

Note: Not applicable (n/a) - the information could not be found.

Abbreviations: PSI, pound-force per square inch (unit of pressure); UVC light, ultraviolet C light.