Learn About Air Purification and Filtration

If We Rated Cars Like Air Filters

August 03, 2018 |

ASHRAE 52.2 gave us the Minimum Efficiency Reporting Value (MERV) for air filters, creating a 16-point chart that tells us what percentage of particles in a certain size range will be removed by a filter.  This system was an improvement when it was introduced in 1999 ...

College Air Filter Change Saves Big

April 25, 2018 |

A Minnesota college recently audited their air filters, and found surprising performance differences between different pleated air filter brands.  Having spent many years buying from a combination of State Contract suppliers and Specify and Bid contract awarded to the ...

The Best Air Filter? MERV-13

March 21, 2018 |

When trying to answer the question of what is best there should be a list of disclaimers, because nothing is 100% best 100% of the time.  For this question, we are addressing commercial HVAC applications for non-critical facilities like schools, office buildings, ...

Protecting Chillers from Cottonwood

February 26, 2018 |

Spring time in the northern Mid-west brings with it so much work for facility engineers that there jsut isn't enough time in the day.  With daily temperature swings of 60 degrees common, snow one day and rain the next, planning can almost be a worthless exercise.  ...

What MERV Rating Should I Use?

November 30, 2017 |

One of the most common questions we get is "What MERV Rating should I use?" and for commercial HVAC air filters this question is one of those easy questions with a semi-complicated answer.  There are a lot of variables when selecting a MERV rating, and in some cases ...

MERV 13 Air Filter

October 09, 2017 |

Increased awareness of Indoor Air Quality (IAQ) and the pollutants and particles that are in the air have changed the idea of what "good" air filtration is.  The health effects of breathing air with a high amount of small sub-micron Particulate Matter (PM) have been ...

MERV 11 Air Filter

October 09, 2017 |

Increased awareness of Indoor Air Quality (IAQ) and the pollutants and particles that are in the air have changed the idea of what "good" air filtration is.  The health effects of breathing air with a high amount of small sub-micron Particulate Matter (PM) have been ...

Impacts of using an Industrial Air Purifier system

October 05, 2017 |

Warehouses and Manufacturing facilites are often large sprawling buildings that make HVAC expensive and problematic.  Most of these facilities utilize unconditioned make-up air units with either a heating coil for winter, or just use supplemental space heaters inside ...

Paint Booth Exhaust Filters

August 14, 2017 |

Recent trends in Paint Booth regulations and filter manufacturing have created some confusion in what type of filters are actually needed for paint booth exhaust.  Too often we find that operators are using old style filters that perform poorly compared to more modern ...

Chillers and Cottonwood Don't Mix: Cottonwood Screens Prevent Problems

August 08, 2017 |

Cottonwood seeds are known to travel up to 5 miles and each cottonwood tree sheds their seeds for two weeks.  Those of us living in the Midwest United States can count on anywhere from one to three months of seeing cottonwood seeds flying around, though most seasons up ...