Global leader in clean air
solution for years

Global leader in clean air solution for years
Case Study

VariCel® VXL Boosts Filter Performance for Global Technology Park

Customer Profile

Global Technology Park

  • Located in Sparks, Nevada
  • World leader in personal technology innovation
  • Breakthrough services and products
Situation

Filtration Solution for Data Centre

About four hours east of Silicon Valley, this global technology company’s Park is the company’s fourth major U.S. server installation. The large-scale server buildings here are designed to support users of the company’s cloud services, with high-tech equipment pioneering some of the world’s most advanced signalling technologies, including Dense Wavelength Division Multiplexing (DWDM).


Addressing air filter performance is a crucial component to keeping HVAC systems operating effectively and efficiently in server environments. Ensuring data centre equipment is running at peak performance while avoiding serious system issues and significant downtime is a top priority.

The Park’s server buildings are set in the desert terrain of Nevada, so filters installed there must be durable and have a high dust holding capacity for this demanding environment. With the MERV 13 filters that this company was using, filters sometimes had to be replaced immediately after a storm. A more durable type of filter would deliver cost savings, decrease labour time, and reduce the risk involved with the difficult operating conditions.

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Challenges 1 -The low durability of existing filters

Challenges 2 – Desert terrain location – High amount of dust particulate matter

Challenges 3 – Protection of data centre equipment

AAF International suggested that this technology company try our VariCel® VXL filters in their data centres, since these filters provide superior operating efficiency and performance in high dust load environments. The VariCel VXL filters are manufactured with two layers of glass fibres, coarse fibres on the air-entering side and finer fibres on the air-leaving side. This dual-density design allows dirt particles to be collected throughout the entire depth of the media pack, utilising the full filtering potential of the media and maximising dust holding. Maximum dust holding capacity extends the life of the filter, minimising operating costs and risk.

In addition, AAF International’s VariCel VXL MERV 14 filters were the same price as the current filters that the company was using. The higher MERV rating would provide greater efficiency and lower energy costs with the necessary durability. For these reasons, the company agreed to try the VariCel VXL filters.

The VariCel VXL filters performed so well that they were installed in four buildings, for a total of 14,480 filters. This company is currently constructing more server buildings in the 345 acre Park, and the VariCel VXL filters will be installed in these buildings as well.

Additionally, 600 MEGApleat®MERV 8 filters to utilise as pre-filters have also recently been ordered. This was decided due to MEGApleat’s durability, since these filters have a heavy-duty galvanised expanded metal support grid, as well as pleat stability and low resistance. The MEGApleat M8 filters, combined with the VariCel VXL filters, will provide peak operating efficiency and performance with a lower total cost of ownership. Once these filters have proven their performance value, they will be ordered for all server buildings as well.

Recommended Product & Solution

Data Centres

Data centres have unique requirements and strict regulations compared to typical commercial sites. Particulate and corrosive gaseous contaminants have become a serious problem for data centres and server rooms.

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VariCel® VXL

Designed for use in commercial and industrial HVAC installations, the VariCel VXL filter delivers the desired air quality in difficult operating conditions.

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Air Filtration Audit

A thorough air filter audit of your HVAC systems is the first step that AAF International takes in order to provide you with professional guidance and analysis for cost savings and risk reduction. By conducting this audit, we will be able to understand exactly how you compare to the best practices of companies that are similar to you.

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