Retail Mall
Dual 9, 12-month performance guaranteed air filter, results in 3600 less filters shipped to landfill annually and 33% less HVAC energy usage
Applications
Customer(s)
- A mall containing over 200 retailers sharing nearly one million square feet of covered space
Products
Country
- Canada
The proof
The CamTester displayed the remarkable dirt holding capacity and low resistance of the Camfil 30/30® Dual 9.
Three months into the test, the pressure drop on the current polyester media stood at 0.60” w.g. while the Camfil filter was only 0.37” w.g. The polyester pad was replaced at that point, but the Dual 9 was returned in-service. It took 12 months before the Dual 9 reached 0.60” w.g. The units using the polyester pad had been replaced three additional times before the Dual 9 was replaced onceApproach and solution
The mall staff installed Dual 9s in several air handing units in order to compare the performance against their current filters installed in nearby units. Over the next year, dirty filters were regularly tested in Camfil's CamTester – a portable test chamber capable of accurately recording the pressure drop of dirty filters. While the mall's current filters were replaced on a regular quarterly schedule, the Dual 9 filters were returned to service after testing for the entire year.
“The Dual 9 resulted in fewer changeouts and seven weeks of reallocated labor, plus significant annual energy and landfill savings. I wish we had converted sooner." -- Facility Manager
Indirect Cost Savings
- Labor savings reducing from four changeouts per year to one was calculated to be the equivalent of seven full weeks of labor. Those seven ‘free’ weeks are now used on other projects which deliver their own associated benefits and cost savings.
- In keeping with the mall’s sustainability initiatives, it was determined if all 300+ air handling units had the Dual 9 installed, there would have been 3600 fewer dirty filters shipped to the local landfill that year.
- Analyzing the rated particle capture efficiency of each filter indicates the Dual 9 captured and removed up to six times more harmful particles in the 0.4 micron size range.
- On average, 70% of the total cost of an HVAC system is the energy consumed by the fan to supply the required volume of conditioned air to a building. The CamTester kW meter readings on the two test filters indicated that the Camfil 30/30 Dual 9 delivered 5.3 CFM of air per watt while the Poly Pad delivered only 3.8 CFM; a 33% difference between the two filters in air delivered per watt.
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