HVAC NEWS & INFORMATION

How You Can Protect Your Staff & Others to Slow the Spread of COVID-19

Posted by Ohio Heating

Jan 28, 2021 11:43:30 AM

Providing a safe environment for your tenants and or employees is a major concern during the current pandemic. Office building employers, owners and managers, and operations specialists can take the following steps to create a safe and healthy workplace for workers and clients. office & covid

One of the most important things that you can do is to consider taking steps to improve ventilation in the building, in consultation with an HVAC professional, based on local environmental conditions (temperature/humidity) and ongoing community transmission in the area.

A licensed HVAC contractor can help you:

  • Increase the percentage of outdoor air, (e.g., using economizer modes of HVAC operations) potentially as high as 100% (first verify compatibility with HVAC system capabilities for both temperature and humidity control as well as compatibility with outdoor/indoor air quality considerations).
  • Increase total airflow supply to occupied spaces, if possible. 
  • Disable demand-control ventilation (DCV) controls that reduce air supply based on temperature or occupancy.
  • Choose a mechanical air filter to improve air quality.

 Mechanical Air Filters

  • Filters consist of media with porous structures of fibers or stretched membrane material to remove particles from airstreams.
  • Some filters have a static electrical charge applied to the media to increase particle removal. Since the efficiency of these filters often drops off over months of initial use, a MERV-A value, if available, will reflect the actual minimum efficiency better than a standard MERV value. 
  • The fraction of particles removed from the air passing through a filter is termed “filter efficiency” and is provided by the Minimum Efficiency Reporting Value (MERV) under standard conditions.
    • MERV ranges from 1 to 16; higher MERV = higher efficiency
    • MERV ≥13 (or ISO equivalent) are efficient at capturing airborne viruses
    • MERV 14 (or ISO equivalent) filters are preferred
    • High-efficiency particulate air (HEPA) filters are more efficient than MERV 16 filters
  • Some filters have a static electrical charge applied to the media to increase particle removal. Since the efficiency of these filters often drops off over months of initial use, a MERV A value, if available, will reflect the actual minimum efficiency better than a standard MERV value.
  • Increased filter efficiency generally results in increased pressure drop through the filter. Ensure HVAC systems can handle filter upgrades without negative impacts to pressure differentials and/or airflow rates before changing filters.
  • Generally, particles with an aerodynamic diameter of around 0.3 μm are most penetrating; efficiency increases above and below this particle size.
  • The overall effectiveness of reducing particle concentrations depends on several factors:
    • Filter efficiency
    • Air flow rate through the filter
    • Size of the particles
    • Location of the filter in the HVAC system or room air cleaner

HEPA Filters HEPA air filter

  • By definition, true HEPA filters are at least 99.97% efficient at filtering 0.3 μm mass median diameter (MMD) particles in standard tests.
  • Most penetrating particle sizes may be smaller than 0.3 μm, so the filtration efficiency of most penetrating particles can be slightly lower.
  • HEPA filter efficiency is better than MERV 16.
  • HEPA filters may not be an appropriate option for some into HVAC systems due to high-pressure drops and the likelihood that systems will need new filter racks to allow sufficient sealing to prevent filter bypass.
  • To function properly, HEPA filters must be sealed properly in filter racks. Filters are often delicate and require careful handling to prevent damage and preserve performance.
  • HEPA filters can be located in HVAC systems or in:
    • In-Room or Portable HEPA Machines
    • Pre-Assembled Systems
    • Ad Hoc Assemblies 

Electronic Air Filters   

  • Include a wide variety of electrically-connected air-cleaning devices designed to remove particles from airstreams.
  • Removal typically occurs by electrically charging the particles using corona wires or by generating ions (e.g., pin ionizers), and:
    • Collecting particles on oppositely charged plates (precipitators, ESP),or
    • Charged particles’ enhanced removal by a mechanical air filter, or
    • Charged particles’ deposition on room surfaces.
  • The fraction of particles removed from the air by an electronic filter is termed “removal efficiency.”
  • The overall effectiveness of reducing particle concentrations depends on:
    • Removal efficiency
    • Air flow rate through the filter
    • Size and number of particles
    • Location of the filter in the HVAC system
    • Maintenance and cleanliness of electronic filter components
  • It is critical to wipe the wires in electrostatic precipitators as silicone buildup reduces efficiency.
  • Always follow the manufacturer's instructions when using electronic air filters.

Ultraviolet Energy (UV-C)

  • Ultraviolet energy inactivates viral, bacterial, and fungal organisms so they are unable to replicate and potentially cause disease.
  • The entire UV spectrum is capable of inactivating microorganisms, but UV-C energy (wavelengths of 100 – 280 nm) provides the most germicidal effect, with 265 nm being the optimum wavelength.
  • The majority of modern UVGI lamps create UV-C energy with an electrical discharge through a low-pressure gas (including mercury vapor) enclosed in a quartz tube, similar to fluorescent lamps.
  • Roughly 95% of the energy produced by these lamps is radiated at a near-optimal wavelength of 253.7 nm.
  • UV-C light-emitting diodes (LEDs) are emerging for use.
  • Types of disinfection systems using UV-C energy:
    • In-duct air disinfection
    • Upper-air disinfection
    • In-duct surface disinfection
    • Portable room decontamination
  • Requires special PPE to prevent damage to eyes and/or skin from overexposure.

Bipolar Ionization/Corona Discharge / Needlepoint Ionization and Other Ion or Reactive Oxygen Air Cleaners iWave-C

  • Air cleaners using reactive ions and/or reactive oxygen species (ROS) have become prevalent during the COVID-19 pandemic. New devices that are not mentioned elsewhere in this guidance likely fall into this category.   
  • Technologies utilize various methods to create reactive ions in the air that react with airborne contaminants, including viruses. The design of the systems can be modified to create mixtures of reactive oxygen species (ROS), ozone, hydroxyl radicals, and superoxide anions.

If you’re looking for air filtration systems for any environment, whether industrial, commercial, restaurant, or healthcare, Ohio Heating & Air Conditioning has an air cleaning solution for you.

We provide professional air filtration services individually tailored to meet the requirements of our clients. We offer a broad line of equipment to satisfy your air quality and air compliance requirements.  Call 614-863-6666 to learn more. 

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Topics: Air Cleaner, commercial air filters

Enhanced Air Filtration for Commercial Spaces

Posted by Ohio Heating

Dec 13, 2020 1:07:25 PM

We can help you improve the air quality of your offices, waiting rooms, industrial workstations, schools and restaurants using the latest technology that has proven effective in controlling viruses and other pollutants in your indoor space.          covid masks   

Bipolar ionization may be the most important technology in air cleaning today. It is experiencing a surge in popularity as the coronavirus pandemic increases concerns about air quality.

When used with HVAC systems, the technology utilizes specialized tubes that take oxygen molecules from the air and convert them into charged atoms that then cluster around microparticles, surrounding and deactivating harmful substances like airborne mold, bacteria, allergens, and viruses.

They also attach to expelled breath droplets and dust particles that can transport viruses, enlarging them so they're more easily caught in filters. It provides continuous disinfection.

Recent laboratory study results showed that at 10 minutes 84.2% of the COVID-19 was inactivated; at 15 minutes 92.6% of the COVID-19 was inactivated; and at 30 minutes 99.4% of the COVID-19 was inactivated. 

Bipolar ionization works by introducing positive and negative ions into the air. The ionization causes production of clusters of hydroxyl (OH) radicals, which are formed on the surface of microbes, removing hydrogen from the microbes’ cell walls, thereby inactivating potentially infectious particles.

Bipolar ionization provides a vast variety of benefits, including:

✓ Reduced odor
✓ Reduced VOC's. (VOC = Volatile Organic Compounds). 
✓ Reduced bacteria and viruses. 
✓ Reduced particulates. 
✓ Reduced static electricity. 

If you would like to learn more about improving the air in your commercial property, give us a call at 614-863-6666.  At Ohio Heating & Air, we provide professional air filtration services individually tailored to meet the requirements of our clients. We offer a broad line of equipment to satisfy your air quality and air compliance requirements.  

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Topics: Air Cleaner, Bipolar Ionization

Improve the Air in Your Commercial Space with UVGI

Posted by Ohio Heating

Jun 18, 2020 7:00:00 AM

Improving the quality of the indoor air in your commercial building is more important than ever before.  Many building managers and owners are considering UVGI as an option. 

Ultraviolet germicidal irradiation (UVGI) is a disinfection method that uses short-wavelength ultraviolet (ultraviolet C or UV-C) light to kill or inactivate microorganisms by destroying nucleic acids and disrupting their DNA, leaving them unable to perform vital cellular functions. UVGI is used in a variety of applications, such as air purification. Ultraviolet germicidal irradiation 6-17 at 2.05.12 PM

UV-C light is weak at the Earth's surface since the ozone layer of the atmosphere blocks it. UVGI devices can produce strong enough UV-C light in circulating air or water systems to make them inhospitable environments to microorganisms such as bacteria, viruses, molds, and other pathogens. UVGI can be coupled with a filtration system to sanitize air in your commercial space.

The application of UVGI for disinfection has been an accepted practice since the mid-20th century. It has been used primarily in medical sanitation and sterile work facilities. Increasingly, it has been employed to sterilize drinking and wastewater since the holding facilities are enclosed and can be circulated to ensure a higher exposure to the UV. In recent years, UVGI has found renewed application in air purifiers.

Every building can benefit from ultraviolet germicidal irradiation (UVGI). Installing a UVGI system will result in significant energy and maintenance savings. These systems also improve indoor air quality for building occupants by reducing airborne biological contaminants and toxic VOCs.

At Ohio Heating, we offer practical solutions for all industrial, medical, retail, corporate, and hospitality applications.  

Schedule an Appointment Now!

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Topics: Air Cleaner

Do Air Cleaners Help Prevent Colds & Flu?

Posted by Ohio Heating

Feb 28, 2020 8:12:53 AM

lRight now everyone is thinking about colds and flu prevention. Flu and viruses are on everybody's mind. Keeping your family healthy can be difficult but there are a few tips to help guard against colds and flu this season.

1. Encourage your loved ones to get a flu shot.It's the best thing you can do to prevent the flu.

2. Wash your hands often and encourage your children to do thewoman_sneezing.jpg same. When you come in contact with people who are contagious, you need to clean your hands continually, according to Alan Pocinki, MD. internal medicine at the George Washington University Hospital in Washington, DC. 

Proper hand washing must include scrubbing hard for 20 seconds or more. Water temperature doesn't matter.  The scrubbing is what actually removes the germs. 

3. Stock up on alcohol-based hand sanitizer.  When away from home, this is the first line of defense.

4. Avoid getting close to people who are sick.  It's the time of year when people will understand if you don't shake hands or hug. 

5. Clean your surroundings often.  You should sanitize doorknobs and light switches and any other places that people touch with their hands a lot. 

6.  Install a whole house air cleaner.  Premium priced furnace filters can't match the performance of whole house filtration equipment. When high efficiency air cleaners  are attached to your heating and cooling system, they can silently and effectively rid indoor air of air borne irritants and many biological contaminants in your entire home. 

Air, free of harmful contaminants, is essential for good health. How clean is the air in your house? Even the best air filters won't rid your home of the viruses, allergens, bacteria, and harmful gases emitted from products in your home from sources such as cleaning products, pesticides, carpet and upholstered furniture. These are present in all houses. 

Today's homes are constructed tighter than ever trapping stale indoor air and pollutants. Proper filtration cleans the air in your entire home. A whole-home air purifier treats 100% of the air flowing through your system before it circulates, to remove bacteria, viruses, pollen and mold from the air.

Ohio Heating and Air is a company that is not only a leader in heating and cooling systems, but in providing our customers the highest quality of indoor air.  Our quality indoor air experts can diagnose and help you solve any indoor air issues you may have.

We carry a full line of Aprilaire ventilation solutions that are designed to deliver improved performance and reliability. They are maintenance-free and come with a five year warranty.

Give us a call or fill out the form on the right to schedule a Free Consultation about your home's air quality.  We service all makes and models of air cleaners and ultra violet air purifiers. 

Air Cleaner Services:

  • High Efficiency Air Cleaners
  • Replacement Filters
  • Service all makes and models
  • UV Air Purifiers

 

Contact Us Now!  

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Topics: Indoor Air Quality, Air Cleaner, colds and flu prevention, Aprilaire ventilation solutions

Four Reasons Your House Has a Bad Smell

Posted by Ohio Heating

Aug 12, 2019 9:31:47 AM

Get to the source of the offending odor and you’ll be on your way to enjoying a home that smells as sweet as a summer breeze. No one wants their home to smell badly, but pets, kids, dirty drains and moisture can all cause some foul odors. If your house doesn't have that clean smell you long for, here are some tips on how to eliminate those stinky odors and start enjoying your home. bad_smell-693735-edited

1. Check the trash cans. Let's face it, garbage stinks. Empty your trash every day and clean the can often to eliminate lingering odors.

2. Keep your pets clean. Give your pets a bath on a regular basis and clean the areas where they sleep and eat once a week with soap and water. Nothing says stinky like a litter box that has been neglected. Clean the boxes daily to avoid smelly up your entire home. You should also vacuum often to avoid hair and odor buildup.

3.  Clean your garbage disposal. This is a common kitchen odor culprit. You can buy garbage disposal deodorizers or try grinding a few strips of lemon, lime, or orange peel in the disposal. This acts as a deodorizer and also cleans the drain.

4. Wash your dirty clothes ASAP. Leaving your close hamper in the bathroom exposes your dirty clothes to steam and moisture. This promotes bacterial growth and bad odors. Move the hamper into your bedroom away from the moisture. Also any dirty, wet clothes should be washed immediately.

Ohio Heating & Air Conditioning knows that with today's busy schedules it's easy to be unaware of the state of your indoor air quality. Many people don't realize that they can make adjustments to ensure that they have the highest quality air. Whole home air purification systems can improve the comfort of your home.

Using a HEPA filter in your home can remove most airborne particles that might make allergies or respiratory problems worse. A HEPA air filter works by forcing air through a fine mesh that traps harmful particles such as pollen, pet dander, dust mites, and tobacco smoke. Our indoor air purifiers will:

• Provide total comfort
• Control dust
• Protect your family’s health
• Protect your home

Contact us today for a healthier, more comfortable home. We specialize in whole house air cleaners, residential air purifiers and whole house humidifiers to improve your indoor air quality. 

Contact Us Now!

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Topics: Indoor Air Quality, Air Cleaner, Air Filters, whole house air cleaners

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