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Indoor Air Quality Standards

October 7, 2014

The following "at a glance" summary of the Indiana State Dept of Health - Title 410 Article 33, Effective March 2011, was prepared by Performance Services for our customers. For the complete document, please see the complete Title 410.

  • Minimum of 15 CFM of outside air per occupant must be supplied to occupied classrooms
  • Maximum classroom CO2 level = outdoor CO2 level plus 700 PPM - Typically 1,000 to 1,100 total PPM
  • Specialty rooms according to ANSI and ASHRAE standards
  • School must appoint IAQ coordinator as contact for students, staff, parents, visitors and the state
  • IAQ coordinator must be present during state inspections
  • IAQ Coordinator contact information must be provided to students, parents, employees, visitors during orientations such as new hires or school/visitor orientations and must be published on school website and handbook

State inspector can enter school at any time to:

  • INSPECT facilities, equipment, or records
  • INVESTIGATE complaints
  • CONDUCT tests and collect samples
  • DETERMINE if school is in violation of rules

State inspector shall investigate complain even if school has address issue or complaint

  • Adopt and enforce a written policy to address idling vehicles within 100 feet of any building containing classrooms
  • Policy can be modeled after state dept's manual of IAQ best practices
  • Must be available for state inspector's review

Temperature requirements when the following spaces are occupied by students

Instructional rooms, cafeteria, offices, locker rooms:

  • Minimum = 68 degrees F
  • Maximum = 78 degrees F

Activity rooms and shops:

  • Minimum = 65 degrees F
  • Maximum = 78 degrees F

Interior toilets:

  • Minimum = 60 degrees F
  • Maximum = 78 degrees F

Exceptions: Buildings without air conditioning don’t have to comply with maximum temperatures

  • Maximum = 65% RH during occupied periods
  • Needed year round to prevent mold

Establish and maintain written maintenance procedure to include:

  • Inspecting HVAC systems a minimum of once per year
  • Keep ventilation units unobstructed, Schedule for cleaning HVAC coils
  • Written logs documenting cleaning HVAC equipment
  • Filters changes 3 times a year

New construction and renovation require all supply and return air from HVAC systems shall be ducted. Open return plenums above ceilings are not allowed.

  • Ozone generators/air purifiers not allowed in classrooms when students are present
  • Scented candles and air fresheners not allowed in classrooms
  • Water leak or intrusions require corrective action within 48 hours of discovery
  • Mold or mold contaminated material require correction action within 48 hours of discovery and mold is not to be growing in the school
  • Carpet vacuums must meet HEPA filtration levels by January 1, 2015

Furred, feathered, or reptilian animals shall only be allowed in classrooms for educational purposes.  Exceptions include:

  • Fish in aquariums but must be of reasonable size/quantity
  • Service animals

Schools allowing animals in the classroom shall have a written policy addressing:

  • What animals are allowed
  • When animals are allowed in classrooms for educational purposes
  • The duration of an animal's stay in a classroom
  • Housekeeping requirements
  • How issues with students or staff allergic to the animal will be addressed

This policy shall be available for the state department's or its agent's review

  • Student exposure to chemicals must be kept to a minimum. When evaluating student exposures, the more stringent of National Institute for Occupational Safety and Health (NIOSH) limits or Occupational Safety and Health Administration (OSHA) limits must be used
  • Where chemicals are used during class, appropriate ventilation must be used to minimize students' exposure to these chemicals, such as a local exhaust system
  • The school may adopt and enforce a policy that minimizes student and staff exposure to chemicals
  • Furniture in classrooms shall be maintained to prevent the accumulation or growth of allergens. This shall include routine cleaning as appropriate for the type of furniture

During building renovation or additions, steps must be taken to ensure pollutants from these areas do not enter the occupied spaces.

These steps may include, but are not limited to:

  • Keeping the occupied spaces under positive pressure in relation to work areas
  • Filtration
  • Limiting certain activities to times of no occupancy
  • Temporary partitions
  • Other appropriate actions

For new construction, carpet is prohibited on walls

  • School must post state’s IAQ report and the school's response to this report within 5 days and leave posted for 14 days
  • School has 60 days to remedy IAQ problem and send state explanation of how IAQ problem identified by the state was remedied.
  • School must post the state’s inspection results on their website and in the area where the violation occurred so as to be accessible to students, parents and employees.
  • State may re-inspect school to confirm remedy resolved IAQ issue.

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