Includes exploration of new ideas for innovative air cleaning approaches.This study is beingl conducted to learn more about how wildfire smoke and other sources of air pollution impact indoor and outdoor air quality, and how these impacts vary throughout the year.

ASHRAE Resources Available to Address COVID-19 Concerns

****!!!!**** "This cold mist humidifier for the bedroom features an innovative electrolytic sterilization module to ensure a healthy indoor environment. Using just tap water, this humidifier runs the water through the electrolytic process to create slightly acidic electrolized water, which is a strong and natural disinfectant. Meanwhile, the humidifer's ultrasonic atomizer ensures that the electrolyzed water is converted into a hydroxyl mist, which removes odors, oxidizes contaminants, and kills viruses and bacteria. Independent testing has shown that this dry air humidifier consistently had an airborne bacteria kill rate of 99.9% in two hours."

****!!!!**** "Apart from California Air Resources Board requirements, no U.S. standard, regulation, or industry consensus program requires measurement and disclosure of ozone production by air cleaners."

****!!!!****!!!!**** Just add ionopure Sanitizer to our Cool Mist Humidifier and place in any small- to medium-size room to help kill viruses, bacteria, fungus and mold.

The purpose of this research is to evaluate spray parameters for several different types of sprayers and foggers. Specifically, we are evaluating six ESS, two foggers, and one hand-pumped garden sprayer

****!!!!**** Dry rooms and air-conditioned indoor spaces hike Covid-viral infection, conclude Indian and German researchers in their meta-study. They're urging optimum humidity standards for building interiors and public transport.

"The density of negative air ions produced from an ultrasonic mist maker was measured to be 1.5 ×104ions/cm3, which is much higher than the value for ambient air, 1.1 ×103 ions/cm3 and it is the result of the Lenard effect of water shear of spray electrification due to ultrasonic vibration. The negative air ion density was high compared with that of ambient air at a long distance near the ground floor. No ozone or nitrogen oxides were generated as by-products, but the density of charged air ions decreased rapidly with increasing of height from the floor. Within a distance of 10 m, we could produce a high density of negative air ions, which could be absorbed into our body through skin contact and aspiration."

"Four House committee chairs say they have "serious questions" about the adequacy of the CDC's guidance on workplace protection from aerosol transmission." "For the last two weeks, scientists, experts and unions have been prodding the administration to be more specific about guidance on exposure to small aerosol particles that carry COVID-19, which they say the CDC's official guidelines downplay. " "If an emergency temporary standard is deemed necessary by OSHA, it would be the first enforceable nationwide standard for face masks in America's workplaces. "

"With prehumidification, recovery rates (± standard deviations) were much higher for nonenveloped viruses (T7 coliphage, 28% ± 19% with prehumidification versus 0.02% ± 0.01% without prehumidification; poliovirus, 29% ± 5% versus 3.2% ± 1.8%) but were unchanged for enveloped viruses (Semliki Forest virus [SFV], 32% ± 7% versus 42% ± 8%; Langat virus, 42% ± 10% versus 51% ± 12%) Benbough attributed the inactivation of nonenveloped viruses to structural rearrangement during abrupt rehydration in the impinger collection medium and suggested that slower rehydration rates, such as those experienced during the prehumidification process, were more favorable for polioviruses and coliphages" "Viruses that partition on the surface of aerosols may be subject to damage due to surface tension, shear stress, and conformational rearrangement driven by hydrophobicity." "Results showed that enveloped viruses lost infectivity dramatically (up to four orders of magnitude) due to aeration, while the nonenveloped ones did not." "Higher RH allows for larger final aerosol size and larger surface area due to less evaporation and, thus, greater potential for surface inactivation of hydrophobic lipid-containing viruses (i.e., enveloped viruses). Nonenveloped viruses are less likely to be affected." "While salts appear to be toxic to enveloped viruses, addition of salts to the medium has been shown to improve rather than reduce the viability of nonenveloped viruses... Benbough (1) suggested that salts can slow the rehydration process ... and thus reduce the chance of structural rearrangements that can be damaging in the capsid of nonenveloped viruses. Our interpretation of the enhanced viability is that salts can keep the aerosol and the virus in it from drying out completely at RHs above the ERH and thus reduce the chance of unwanted structural rearrangements during rehydration. This effect would benefit the nonenveloped viruses that need to retain their structural water; meanwhile, they are not susceptible to damage by salts, as are enveloped viruses."

"Some experts, including us, are encouraging that the hospitalized patient with COVID-19 spend as much time as is feasible and safe in the prone position while receiving oxygen or noninvasive modalities of support such a high flow oxygen delivered via nasal cannulae (HFNC) or noninvasive ventilation (NIV)." "Nebulizers are associated with aerosolization and potentially increase the risk of SARS-CoV-2 transmission.... If nebulized therapy is used, patients should be in an airborne infection isolation room, and healthcare workers should use contact and airborne precautions" "For patients with COVID-19 who are intubated...we prefer the use of in-line metered dose inhalers (MDIs; ie, pressurized inhalers) rather than administration via a standard jet or vibrating mesh nebulizer due to the lower risk of aerosolization"

I have asked two times the following question:I want to calculate the gas concentration, in ppm, in the closed chamber of volume 1025 cm3. I have a cylinder of mixture of NH3 and air with the 10...

{Includes benefits of electrostatic sprayers} Electrostatic sprayer was 29-times better than the conventional sprayer in depositing the active ingredient onto the backside of the target" "75% less disinfectant wastage" "Solutions applied via an electrostatic sprayer were found to be better able to encapsulate and inactivate the inoculated pathogen directly on the surface"

Solo CLEANLine One-Hand and Handheld Sprayers Cleanliness can make or break a business. Whether you're a school janitor, a hotel manager, or restaurant owner...

Information on Improving Air Quality in Your Community

Find out how clean air benefit your workplace, people and processes across all industries.

The benefits of cold fogging and how to implement it into your practice.

LG Household & Health Care, South Korea’s leading maker of household goods, said Wednesday that its humidifier disinfectant sold back in the late 1990s did contain potentially harmful chemicals, but that they were used in small amounts that would not cause damage.　Earlier in the day, local news agency Newsis had reported that LG’s “119 Humidifier Disinfectant” product sold from 1997 to 2003 had contained benzalk...

Bipolar ionization technology emits charged particles that attach to and deactivate harmful substances like bacteria, allergens, mold, and viruses.

PDF | The humidifier disinfectant disaster (HDD) was not a simple poisoning accident by biocides, but a singular disaster in history created by... | Find, read and cite all the research you need on ResearchGate

[**Side thought: Contaminated or high-mineral (or high turbidity) local may be detrimental even in spray bottles!!} The U.S. Department of Energy's Office of Scientific and Technical Information

Testing is needed beyond just for minimum approval, and needs to be application-type specific.

Only if you clean them often—we’re talking daily—can you breathe easy.

no CD nor sprays into air

Evaluation of effectiveness of various methods

This article aims to draw the attention of the scientific community towards the elevated risks of airborne transmission of diseases and the associated risks of epidemics or pandemics. The complexity of the problem and the need for multidisciplinary research ...