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F V S E
Facility Ventilation Search Engine
Find out the ventilation levels in your facility now.
Search Tips: try broad terms first like: school, airport, airplane, train, gov, restaurant, example
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Our mission is to
organize the worlds facility ventilation information and make it universally accessible and useful,
and offer in Room Ventilation Alarm products.
We gather
user observations when they visit facilities,
import site survey data from facility managers,
import Government certified data from sources like schools and test labs,
we do our own research to find facility ventilation data already on the web,
and we connect our ventilation alarm products to F V S E.
We present data in a variety of ways
building summaries, room details, groups of buildings statistics, reports, certificates, etc
using various views meant to convey the most essential information as quickly as possible.
Our in room ventilation alarm products
alert occupants when there are problems
and they continuously send data to F V S E.
It all starts with a F V S E query.
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Our Vision
Our facility ventilation systems started to fail us slowly with the start of the energy crisis in the 1970's. As time moved on it just became worse and it is not getting better. This is a long term problem. It is not going away. We have the technologies, we know what to do, this is a social problem. Only you can make this final vision of safe ventilation levels in our buildings, planes, trains, busses, and other spaces.
Start using F V S E today.
Add your observations.
Reach out to your schools and places of work and ask them to provide data for F V S E.
Contact us about our Ventilation Alarm products that alert occupants to ventilation problems.
It all has to start somewhere and this is the place and the time.
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Ventilation Basics
A building ventilation system
is a life support system.
If the ventilation is not
working properly people will be infected by airborne contagions.
Ventilation performance is
key to ensure that the risk of infection is minimized or eliminated in a
room.
Ventilation is measured in
terms of Air Changes per Hour (ACH) or Equivalent (eACH) for UV based
systems.
If the ACH is zero or 1 we
know that people including children in schools will be infected by an airborne
contagion.
As the ACH level increases
the risk of infection drops.
For hospital rooms with airborne
contagions the CDC recommends a minimum of 12 ACH.
The Heating Ventilation and
Cooling (HVAC) systems and UV systems are the primary approaches used to
ventilate buildings.
Many buildings have
poor maintenance with closed off vents, failed fans, or poor operations where
the system is turned off when people are present.
Many buildings have
systems that are too small.
The Facility Ventilation
Reporting service allows people to take control of their environments and
examine the ventilation rates of the buildings that they visit.
Anyone can add buildings
to the database if there is no data.
The CAB data is a summary
of a facility.
The ACH data (including eACH)
has multiple rooms found in a facility.
The data currently is based
on visitor observations and site surveys some of which is Certified by Government
authorities.
In the future, there will
be real time data providing the latest ventilation status.
embedded video
How to start: Just start pressing the buttons above.
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Why should facility occupants participate
Why should facilities disclose their ventilation data in the public database
Why should facilities install the new Ventilation Alarms System
Still hesitant...
Learn More: Building Ventilation
Deep Learning: Clean Air Buildings
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What can I do Now?
The following are guidelines for people visiting a facility.
The following are general guidelines for optimizing the ventilation performance level in any facility.
Anemometer |
Thermostat |
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Facility Types
Many buildings have poor maintenance with closed off vents, failed fans, or poor operations where the system is turned off when people are present. Many buildings are not being operated properly. The systems are turned off when the public is present. This is especially found in buildings like club houses with on demand systems. No one is turning ON the fan option when people are present. Many buildings have systems that are too small. The reality is that there are Elite buildings where everything is properly maintained, operated, and they have high ACH levels exceeding 12+ ACH.
Facility Type | ACH Levels | Maintenance | Operations |
Elite Facilities | Excellent | Excellent | Excellent |
Medium Facilities | Lower | Excellent | Excellent |
Low End Facilities | Lower | Poor | Excellent |
Low End Facilities | Lower | Excellent | Poor |
Low End Facilities | None | Poor | Poor |
Where does your facility fall?
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FVSE Search Rating Scales
The FVSE search rating scales take the ACH levels and apply them to a rating level that provides a text based rating and a color assignment. The rating scales are named as follows:
The Airborne scale is based on the CDC guideline of 12+ ACH for airborne contagions. The scale is divided by each increment of ACH 0, 1, 2, 3 up to 15 ACH. A rating and color is assigned to each level. The green level starts at 12 ACH. This is a FVSE scale based on Cassbeth research.
ACH |
Airborne Scale |
Airborne Scale |
0-1 |
Very Low 0-1 |
Red |
2-5 |
Low 2-5 |
Orange |
6-11 |
Med 6-11 |
Yellow |
12-15+ |
Elite 12-15 |
Green |
The Comfort scale is from the Harvard T.H. Chan School of Public Health: Schools for Health: 5-step guide to checking ventilation rates in classrooms. It is considered a low end scale because the CDC guideline for airborne contagions is 12+ ACH and this scale reaches a green level at 5+ ACH. This scale has a higher risk of airborne infections than a scale based on the CDC guideline of 12+ ACH. This scale is driven by the reality of the existing ventilation infrastructure. It is based on comfort levels not airborne contagion mitigation.
ACH |
Comfort Scale |
Comfort Scale |
< 3 |
Low |
Red |
3-4 |
Bare Minimum |
Pink |
4-5 |
Good |
Yellow |
5-6 |
Excellent |
Light Green |
6 |
Ideal |
Green |
The Outdoors Comparison scale is based on the ACH levels that are found in outdoor settings. The scale rates ACH levels against the ACH levels available in outside scenarios. These ACH levels are extremely high and very healthy where the infection risk is very low. The green level starts at 50+ ACH. In the ideal situation this is where ventilation needs to go in the 21st century. The goal is to bring the outside ACH inside with no compromises. The reality is there are Green ventilation level rooms with an Outdoor rating today in many buildings but they are special cases. This is a BCMC scale based on Cassbeth research.
ACH |
Outdoors |
Outdoors |
0-1 |
Bad 0 |
Red |
1-4 |
Low 1 |
Red |
4-10 |
Med 2 |
Orange |
10-24 |
High 3 |
Yellow |
24-50 |
Very High 4 |
Yellow |
50-100 |
Outdoor 5 |
Green |
100-120+ |
Outdoor 6 |
Green |
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Ventilation Polls |