Air Ozonation

What is Air?

Air is a mixture of gases that circle Earth, kept in place by gravity. Air makes up Earth's atmosphere. The air we breathe is 78 percent nitrogen gas, 21 percent oxygen, 0.9 percent argon, and 0.03 percent carbon dioxide, along with water vapor-floating molecules of water. Also present are traces of other gases and tiny bits of dust, pollen grains from plants, and other solid particles. As our atmosphere extends higher and higher above Earth, toward outer space, air becomes thinner and the combination of gases in the air changes.

Why Air is Important?

Air is important for many different organisms for different reasons. One of the main reasons it is important for humans is that it contains oxygen - which we breathe. Furthermore, it enables the removal of our waste CO2 - which is taken up by photosynthesizing plant life. It provides us with a medium through which we interact with our ecological environment ... other Life forms on the planet. It is a major part of the biosphere.

When people think about air pollution, they usually think about smog, acid rain, CFC's, and other forms of outdoor air pollution. But did you know that air pollution also can exist inside homes and other buildings? It can, and every year, the health of many people is affected by chemical substances present in the air within buildings.
There are many different chemical substances that contribute to air pollution. These chemicals come from a variety of sources. Among the many types of air pollutants are nitrogen oxides, carbon monoxides, and organic compounds that can evaporate and enter the atmosphere.

Air pollutants have sources that are both natural and human. Now, humans contribute substantially more to the air pollution problem.

Indoor Air Quality (IAQ)

It is a term to the air quality within a building or Structure and it relates to the health and comfort of building occupants. IAQ can be affected by microbial contaminants (mould bacteria and virus) gases include carbon monoxide, volatile Organic Compounds. Indoor air is becoming an increasing more concerning health hazard than door air. This is Additional LOAD on the Air Condition System.

Indoor Air Contaminates

• Volatile organic compounds
• Airborne pathogens
• Odors
• Repairable particulates

A) Volatile organic compounds(VOCs)

i. What is Volatile Organic Compounds?
• The term Volatile Organic Compounds refers collectively to a large number of organic vapors which contaminate indoor air. Over 300 VOCs have been identified in indoor air at concentrations exceeding 1 part per billion (ppb).
• The most commonly reported VOCs are formaldehyde, ethyl benzene, benzene, ortho, para, meta-sylenes, styrene, chlorinated solvents, including 1-1-1-trichloroehtane, tetrachloroethylelene & trichloroethylene, carbon tetrachloride, dichlorobenzene, methylene chloride and chloroform.
• VOCs are consistently found in higher concentrations indoors than outdoors.

ii. Sources of Volatile organic compounds

• The sources of VOCs are numerous and include building materials, cleaning solvents, paints, adhesives, carpets, hot water, and indoor combustion sources.

iii. What health effects can VOCs cause in human body?
• Symptoms associated with exposure to VOCs include conjunctive irritation, nose and throat discomfort, headache, allergic skin reaction, dyspnea, declines in serum cholinesterase levels, nausea, emesis, epistaxis, fatigue, dizziness.

B) Air borne Pathogens:
Pathogens, or in this case better to stay, infectious agents are ubiquitous. Some of them are obligatory pathogens. Causes of severe diseases and therefore are well known. Some of them are obligatory pathogens. Cause of serve diseases and therefore well-known. Some of them are well-known but they are considered to be either less risky or it is believed that they are under control. Some of them are facultative pathogens, causing fewer infections and therefore mostly are unknown. All of them should cause health problems indoor as the indoor environment is very special.

Sources of air infection in indoor environment:
Transmission – passing of diseases from an infected individual or group to previously uninfected individual or group. The microorganisms (bacteria & viruses) that cause disease may be transmitted from one person to another by one or more of the following means:

• Droplet contact: - Coughing or sneezing on another person.
• Direct physical contact: - Touching an infected person.
• Indirect contact: – Air exchange is mostly inadequate, especially where ill people are concentrated.
• Poor Ventilation: - Poor maintenance of ventilation/air exchange systems is rather common, so the infectious dosage could be reached easily, if the source of infectious agent is indoors.

Direct & indirect transmission infectious agents are easy in overcrowded interior. Microorganisms vary widely in the length of time that they can survive outside the human body, and so vary in how they are transmitted.

The air treatment solution is proposed on following basis:

Ozone has been successfully used in bars, smoking rooms, cocktail lounges, taverns, airport smoking areas, lounges etc., smell, bacteria, mould, mildew and other micro organisms from the HVAC system. Smart sensors’ used ensure that the ozone in the treated room does not exceed 0.03 - 0.05 ppm. The ASHRAE standard for ozone is 0.05 ppm Ozone is increasingly being used in HVAC system to improve the indoor air quality and also to improve the energy efficiency of the HVAC cooling coils.
 

Air Treatment

i. HVAC: Ozone reduces VOCs odors, and saves power by reducing fresh air required and eliminate sick building syndrome.
ii. Air Disinfection: For sterilization of air in hospitals of air in hospitals, operation theaters & Laboratories.
iii. Air Deodorization: For hotel rooms, lobbies, STP rooms, garbage rooms, fish shops.
iv. Medical Healing: Ozone is used for accelerated healing of wounds etc.

Air Conditioning

By treating the air conditioning system with ozone, you can prevent the buildup of bacteria and fungi this will eliminate bad smell and the spread of health problems such as, allergies, rashes ,colds, viruses & legionnaires.

Food Storage

Ozone treatment of products prior to packing dramatically reduces bacteria levels, as well as controlling listeria and other pathogens, helping to extend the shelf life of the products.

Hotels Rooms

Hotel rooms, if not properly cleaned and ventilated thoroughly, can hold a number of objectionable odours.ozone treatment will eliminate bad smell and the room is left with a fresh air smell and is ready for the new customer to use.

Restaurants/Bars/Casinos

Ozone use in restaurants, bars and casinos helps to maintain a pleasant atmosphere for customers by keeping the air clean and controlling the inevitable odors that occur in such places.

Household Odors

Ozone Generator machines utilize ozone to destroy tobacco smoke and its inherent impurities plus odors from pets, cooking, mold, mildew and other household sources.

Smoking Rooms

Ozone treatment can leave the room odor free as the gas reacts with the smoke molecules, effectively separating them and allowing them to dissipate.
 

How does ozone work?

Controlled quantity of ozone introduces in the AC Ducts Eliminates Toxic gasses, odors smoke by oxidation and microbes & virus.

Advantages

• Ozone is the strongest oxidant available for the treatment of odors.
• Ozone kills airborne pathogen & viruses.
• Although ozone is the strongest oxidizing agent commercially available, it is safe to handle.
• Ozone generators in SS & easy to install.
• Ozone is easily generated onsite with oxygen & electricity (both are readily available).
• Easy to control ozone concentration by sensors.
• Fan cooled. No cooling water required.
• Compact in design combined with high efficiency.
• Adjustable ozone sensor (0.02 - 0.1 ppm).
• Oxygen for feed gas with oxygen generator to give constant ozone outputs without any Nitrogen oxides.
• Energy Saving Intake of Fresh Air from outside for dilution is greatly reduced (By about 80%).  Due to Ozone saving
  of energy which in cooling outside Air and Dramatic saving in cost.