Killing aerosol viruses and surface viruses is best accomplished using a dry fogger. Dry Fogging, by definition, means to generate aerosol droplets at 10 microns or less in diameter. This small diameter has too little mass to be pulled to the ground by gravity; thus liquid droplets at 10 microns or less tend to float and evaporate into the airflow. A Dry Fog ensures the disinfecting liquid mixed with a pure water comes in contact with a much larger airflow volume, which permits the disinfecting component to come in contact with airflow and surface viruses, far more effective than spray foggers that wet the surface only. Many companies offer spray foggers, which by definition emit droplets larger than 10 microns in diameter. The problem with sprayers is that the spray emitted is composed of large droplets, typically 30 – 70 microns in diameter, which are pulled by gravity to the ground. These large droplets then soak into the ground or rug, and the disinfecting component in the water has little potential to kill viruses.
DryFoggers come in a variety of designs, the most potable is the portable, backpack, battery operated, DryFogger, model # PBDF. This portable fogger operates at 10 micron droplet diameter. The beauty of the PBDF DryFogger is that you can use it almost anywhere, comfortably holding the weight on your back and shoulders. Nearly all portable devices are actually spray foggers with large 35 to 70 micron droplets that land on the ground and soak into the floor material; whereas the PBDF operates at 10 microns to produce a fog that floats into the airflow to evaporate into a much larger disinfecting invisible cloud to contact viruses on surfaces and in the airflow. The DF2S Dry Fogger is designed with a 7.5 micron visible vapor droplet output, and when mixed with Minncare sterilant at a typical 3-7% in deionized water or WFI water, the droplets evaporate into the airflow, creating a much larger, invisible sanitizing volume up to 30,000 cubic feet in volume. TWhen used with the DF2S, Minncare sterilant is 99.997% effective at killing spores, molds, fungi and viruses such as coronavirus, so the DF2S is a highly effective DryFogger to kill viruses in large, enclosed areas. The DF2S is an industrial sanitizing tool used in pharmaceutical spaces, business offices and large enclosed manufacturing areas. The CRF4S Dry Fogger emits an 8 micron visible vapor droplet. The liquid is mixed with your preferred disinfecting liquid, typically at 1 – 3 % , evaporates to form up to 10,000 cubic feet of invisible sanitizing vapor when mixed. You can disinfect large areas with a DF2S, or disinfect offices and rooms with the CRFS, or go totally portable and use the PBDF portable dry fogger.
Sterilizing Fogger Price and Performance Comparison
| Product Model | Competitive Humidifier/Fogger, 1.5 GPH | Competitive Humidifier/Fogger, 9 GPH | DF2S Sterilizing Dry Fogger | CRF4-S Sterilizing Dry Fogger | ACTRIL Sterilizing Fogger | Disinfectant Backpack Fogger |
|---|---|---|---|---|---|---|
| FOG Minutes | ~ 60 minutes | ~ 60 minutes | ~ 90 minutes | ~ 45 minutes | ~ 60 minutes | ~26.67 Minutes @ Max output, Refill and Restart until battery runs out, replace battery, refill and restart. |
| Primary Fogger Application | Humidifier | Humidifier | Sterilizer | Sterlizer | Sterilizer | Sterilizer |
| Total Sterilant Vapor Volume @ 1 Cycle | ~ 500 CFM, (30,000 cubic feet per hour, 85 Cubic Meters / cycle). Not verified by any organization. Only 4 gallons of 7% H2O2 concentration is provided with purchase at $1499.00?. | MFG claim is ~ 3000 CFM, (180,000 cubic feet per hour, but is not proven by any customer. Not verified by any organization. Only 4 gallons of 7% H2O2 concentration is provided with purchase at $1499.00, which is quite expensive for H2O2? | ~ 35,000 cubic feet (1000 cubic meters) / cycle. Refill and Restart as needed. | ~ 10,000 cubic feet (285 cubic meters) per cycle. Refill and Restart as needed. | ~ 3531 cubic feet (100 cubic meters) per cycle. Refill and Restart as needed. | Refill and Restart as needed. |
| Total Volume Sterilant w Sterilant provided @ 3.5% mixture | H2O2 sterilant is provided only at 7% concentration, which is fine to sterilize vegetables from Molds and fungi; but to kill coronavirus the % H2O2 should be between 35% and 45%. H2O2 costs about $375 / gallon. 4 Gallons of H2O2 would allow for 6.6 operating cycles for a1.5 GPH fogger. | H2O2 sterilant is provided only at 7% concentration, which is fine to sterilize vegetables from Molds and fungi; but to kill coronavirus the % H2O2 should be between 35% and 45%. H2O2 costs about $375 / gallon. 4 Gallons of H2O2 would allow for 1 typical operating cycle for a 9 GPH fogger. | 40 gallons Minncare sterilant provided: ~ 200 cycles @ 3.5 concentration ~ 7,000,000 (7 million) cubic feet. Concentrated Minncare is Sterilant cost is $1596/40 gallons, or $39.90 / concentrated gallon | 4 gallons Minncare sterilant provided: ~ 60 cycles @ 3.5% concentration ~ 600,000 cubic feet. Concentrated Minncare is Sterilant cost is $459/4 gallons, or $114.75 / concentrated gallon | 4 gallons pre-mixed Actril sterilant provided: ~ 4 cycles @ 1.0% concentration ~ 14124 cubic feet. Pre-Mixed Actril with tewst strip provided in 4 gallon sets, Sterilant cost is $259/4 gallons, or $64.75/ pre-mixed gallon | |
| Total Volume Sterilant w Sterilant provided @ suggested concentration | 7% H2O2 premixed in ???, cost about $375 a gallon, website states 1.5 gallons per hour to provide about 30000CFM sterlizing capacity. But 7% H2O2 is far below the typical 40% dilution, so how dilute is the sterilant at 30000 CFM? | 7% H2O2 premixed in ???, cost about $375 a gallon, website states 9 GPH to provide about 180000 CFM sterlizing capacity. But 7% H2O2 is far below the typical 40% dilution, so how dilute is the sterilant at 180000 CFM? | 40 gallons Minncare sterilant provided: ~ 100 cycles @ 7.0 % concentration ~ 3,500,000 (3.5 million) cubic feet. Concentrated Minncare is Sterilant cost is $1596/40 gallons, or $39.90/gallon | 4 gallons Minncare sterilant provided: ~ 30 cycles @ 7.0 % concentration ~ 300,000 cubic feet | ||
| Direction of Fog Output | One direction, machine must be moved in position to redirect | One direction about 60 degree dispersal, machine must be moved in position to redirect | 360 Degrees horizontally, or 360 Degrees up angle, or straight up | 360 Degrees horizontally, or 360 Degrees at angle, or straight up | One direction about 60 degree dispersal, gallon jug must be moved in position to redirect | |
| Concentration of Sterilant in Air | With a single output at about 60 degree spread pattern, the tool is dispersing 1.5 gallons (5.67 Liters) of solution in that 60 degree pattern. At 1.5 GPH, does this cause surface wetting in front of fogger? | With a single output at about 60 degree spread pattern, the tool is directing 9.0 gallons (34 Liters) of fog in that 60 degree pattern. At 9 GPH, does this cause surface wetting in front of fogger? | 22 liters in 360 degree pattern allows for better dispersal of sterilant | 9.5 liters in 360 degree pattern allows for better dispersal of sterilant | With a single output at about 60 degree spread pattern, the tool is directing 1.0 gallon (3.78 Liters) of fog in that 60 degree pattern. | 8 Liters in targeted output from Backpack Hose |
| EPA Registrations | NONE, tool suggests 7% H2O2; but H2O2 by itself to fight coronavirus is normally mixed at 35-45% concentration in distilled water | NONE, tool suggests 7% H2O2; but H2O2 by itself to fight coronavirus iis normally mixed at 35-45% concentration in distilled water. | EPA Reg. NO.: 52252-4; EPA Est. NO.: 52252-MN-01; MSDS Available | EPA Reg. NO.: 52252-4; EPA Est. NO.: 52252-MN-01; MSDS Available | ACTRIL Registration | NONE |
| Typical gallons of Sterilant provided w/ product order. | 4 Gallons of H2O2 @ 7% concentration provided at , but H2O2 by itself should be typical 40-45% mixed in distilled water | 4 Gallons of H2O2 @ 7% concentration provided, but H2O2 by itself should be typical 40-45% mixed in distilled water | 40 gallons Minncare sterilant (provides ~ 100 sterilizing cycles @7% solution in H2O; or ~200 cycles @ 3.5% concentration). | 4 gallons Minncare sterilant (provides ~ 30 sterilizing cycles @7% solution in H2O; or ~60 cycles @ 3.5% concentration). | 1 gallon Actril sterilant, pre-diluted for "Pour and Go" operation, 1 gallon per 100 cubic meters | 8 Liters = 2.11 gallons |
| Aerosol Fog Droplet size | ~ 4.2 microns, not verified by any major company | ~ 4.2 microns, not verified by any major company | ~ 7.5 microns, verified by laser particle counter for size peak | ~ 7.5 microns, verified by laser particle counter for size peak | ~ 7.5 microns, verified by laser particle counter for size peak | ~ 10 microns |
| Facilities INPUT | Compressor Line + Water Hose + 110VAC Input | Compressor Line + Water Hose + 110VAC Input | Compressor line only | 110VAC or 220VAC or 100VAC | Compressor line only | 115VAC Charger, Battery is Lithium-Ion 15AH and 24V |
| Cost with typical accessories | $15848 + $5000 for portable gas detector, 4 gallons provided of 7% H2O2 and system consumes 1.5 GPH | $27191 + $5000 for portable gas detector, 4 gallons provided of 7% H2O2 and system consumes 9GPH | $55000, includes 40 gallons sterlant and air quality test instruments and primary accessories, Capacity of 7Million Cubic feet | $55000, includes 40 gallons sterlant and air quality test instruments and primary accessories | $2250, includes 7.5 micron Fog Nozzle, 4 gallons Actril and test strips | $1997, Includes 10 micron nozzle, 2 Batteries and External Battery Charger |
| Adjustable Airflow Velocity and Fog Volume | NONE | NONE | 4 levels of fog volume, controlled by air compressor, (dry air compressor recommended) | Yes, thru wireless remote control | No airflow velocity control, has constant fog volume output | constant fan airflow output |
| Fogger Technology | DryFog Aerosol + Evaporation creates sterilant fog, which evaporates to a sterilant vapor | DryFog Aerosol + Evaporation creates sterilant fog, which evaporates to a sterilant vapor | DryFog Aerosol + Evaporation creates sterilant fog, which evaporates to a sterilant vapor | Ultrasonic creates sterilant fog which evaporates to a sterilant vapor | DryFog Aerosol + Evaporation creates sterilant fog, which evaporates to a sterilant vapor | DryFog Aerosol + Evaporation creates dry fog @ 10 micron droplet diameter, choose a 100% water soluble disinfectant to mix with pure water |
| Liquids Used | Tap Water shown in Specs, but TAP water has Chlorine in it. Suggests 7% H2O2 mixed in Tap Water, but should be 40%. | Tap Water shown in Specs, but TAP water has Chlorine in it. Suggests 7% H2O2 mixed in Tap Water, but should be 40%. | Deionized/Distilled/WFI/Sterile water. Tap Water should not be used due to chlorine in Tap Water. | Deionized/Distilled/WFI/Sterile water. Tap Water should not be used due to chlorine in Tap Water. | Actril Solution does not need any other liquid | Pure water such as distilled water, Deionized water or WFI water or sterile water. Do NOT use TAP Water due to particle impurities in tap water. |
| Where used | Small to medium sized office areas, medical rooms, hospital rooms, work areas. but no company can verify fog volume or use in major company. | Large office areas, medical rooms, hospital rooms, work areas, warehouses. but no company can verify fog volume or use in major company. | Large office areas, medical rooms, hospital rooms, work areas, warehouses | Medium sized office areas, medical rooms, hospital rooms, work areas | Small office areas, medical rooms, hospital rooms, work areas | Portable, for Indoor and Outdoor, Office areas, medical rooms, hospital rooms, work areas. |
| Autoclavable | NO | NO | Yes, Autoclavable | No | No | No |
| Compatible Guidelines | Unknown, no EPA Registration, no CE Mark for manufacture, No ISO or USP status | Unknown, no EPA Registration, no CE Mark for manufacture, No ISO or USP status | ISO 14644-3, USP 797 | ISO 14644-3, USP 797 | ISO 14644-3, USP 797 | Unknown, no EPA Registration, no CE Mark for manufacture, No ISO or USP status |
| Local/State Compliance | H2O2 @ 7% mixture normally takes 30 minutes contact to kill viruses, molds, fungus. Check with Local/State Health for any compliance requirements. No Sterilization Studies completed using this tool. | H2O2 @ 7% mixture normally takes 30 minutes contact to kill viruses, molds, fungus. Check with Local/State Health for any compliance requirements. No Sterilization Studies completed using this tool. | Minncare is EPA registered, kills original Coronavirus in 3-5 minutes after contact, kills bacteria, viruses, molds, yeast and fungi @ 99.997% kill rate. Coronavirus results available. Check with Local/State Health for any compliance requirements. | Minncare is EPA registered, kills original Coronavirus in 3-5 minutes after contact, kills bacteria, viruses, molds, yeast and fungi @ 99.997% kill rate. Coronavirus results available. Check with Local/State Health for any compliance requirements. | ACTRIL is EPA Certified. Kills, viruses, spores molds in 3-5 minutes contact. Check with Local/State Health for any compliance requirements | Choose your preferred disinfecting liquid. |
| Compressor Requirements | Air Compressor: 3 CFM (72 LPM ) @ 110 psi (7 Bar) | Air Compressor: 15 CFM (432 LPM ) @ 110 psi (7 Bar) | Dry Air Compressor suggested, 70-100 psi, wireless remote control of On/Off | None, CRF4-S includes onboard fan control and fog volume control via wireless remote control | Dry Air Compressor suggested, 2.5 SCFM Constant On Compressor @ 45 PSI, 5 or more units can be ran in parallel with 12.5 SCFM Constant On @ 45 PSI | None |
| Total Deionized/Sterile Water and Sterilant Volume | 1.5 gallons | 9 gallons | 22 liters (5.82 Gallons) | 9.5 liters (2.51 gallons) | 1 Gallon, 3.78 Liters, (1 Gallon) | 8 Liters, 2.11 gallons |
| Typical Sterilant Concentration | Suggested 7% H2O2 | Suggested 7% H2O2 | typical is 3.5%, up to 7% | typical is 3.5%, up to 7% | 1% pre-diluted, ready to use Actril Sterilant | Choose your preferred disinfecting liquid. |
| Operator Control | Air Compressor @ 3 CFM @ 100 PSI | Air Compressor @ 10 CFM @ 100 PSI | Operated by separate Dry Air Compressor and Remote Control, 15SCFM @ 75 PSI | Wireless Remote control of fog volume & airflow velocity and ON/Off from 30 feet | Dry Air Compressor on/off, 2 SCFM @ 45 PSI | Single On/Off Switch |
| Remote Control | None Suggested | None Suggested | Remote Control of On/Off | Wireless Remote control of fog volume, airflow velocity and On/Off | Operated Remotely by Compressor | No Required |
| Handling | Rolls on a 4 wheel base | Rolls on a 4 wheel base | Rolls on a 4 wheel base | Portable w/ Carry Handles (top and front), or set on a rolling trolly and roll into position | Hand Carry 1 gallon containers | Backpack |
| Enclosure | Plastic modules, steel rolling trolly | Plastic modules, steel rolling trolly | 316L Stainless Steel, electro-polish | 316L Stainless Steel, electro-polish | Polyethylene 1 gallon Jugs | Back Pack Unit |
| Power VAC | 110VAC | 110VAC | 120, 220, 100 VAC to Compressor only | 120, 220, 100 VAC | 110VAC to Compressor | 115VAC Charger, Battery is Lithium-Ion 15AH and 24V |
| Cost with all critical Accessories | $17,447 | $27,192 | $55000 w/ All Accessories, (See Below) $44200 w/o Air Quality Instruments and Remote Control | $29000 w/ All Accessories, (See Below), $23950 w/o air quality instruments | $2250 includes Actril Fogger, 1 Nozzle, 4 gallons of premixed Actril sterilant | $1997 |
| Weight, no liquid/W/ Liquid | 97 pounds, 109 pounds with accessories | 137 pounds, 149 pounds with accessories | ~ 70 lbs | ~ 45 lbs | ~ 5 pounds | ~16 pounds, 34 Pounds with liquid |
| Accessories | Optional: Industrial PLC Control Center, Optional: Injection Kit for Concentrated Disinfectants; Optional: Hose / Nozzle Kit. No Air Quality Instruments suggested even though H2O2 is suggested for sterilization. | Optional: Industrial PLC Control Center, Optional: Injection Kit for Concentrated Disinfectants; Optional: Hose / Nozzle Kit. No Air Quality Instruments suggested even though H2O2 is suggested for sterilization. | Key Fog Vertical/Horizontal Accessories, air quality Measuring Instruments, 40 gallons sterilant included in Quote | Key Vertical Fogger Accessories, air quality Measuring Instruments, 4 gallons sterilant included in Quote | Additional Actril Sterilant in 4 gallon increments | Hose, Nozzle, Battery, External Charger |
| Hydrogen Peroxide (H2O2), 4 gallons @ 7% concentration is provided. H2O2 reduces to Hydrogen and Oxygen. Unknown what the H2O2 is mixed with, TAP or Distilled Water. | Hydrogen Peroxide (H2O2), 4 gallons @ 7% concentration is provided. H2O2 reduces to Hydrogen and Oxygen. Unknown what the H2O2 is mixed with, TAP or Distilled Water | Minncare's raw materials are EPA Registered and when decomposing, the sterilant reduces down to oxygen, hydrogen and a form of vinegar. | Minncare's raw materials are EPA Registered and when decomposing, the sterilant reduces down to oxygen, hydrogen and a form of vinegar. | Actril’s raw materials are not listed as carcinogenic or mutanagenic, does not produce toxic vapors, is safe for the environment, is completely biodegradable, decomposes to oxygen, water, and acetic acid (form of vinegar). | Choose your preferred disinfecting liquid. | |
