Prefilters are used when pollutants will be present in large enough quantities to rapidly clog HEPA or carbon filters. Dacron Filters are 4 ply with decreasing pore sizes for each ply. They are rated at 60% efficient for particles of 5 microns or larger. As such, they will remove most gross particulates, saving the HEPA for only the smallest particles. They are also used with carbon when the environment is dusty enough to reduce carbon filter effectiveness or as an after filter to contain possible carbon particle emission.
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Why Purchase
Through OECM?
As part of our OECM agreement, Delta Scientific supports a wide range of laboratory and science needs, including:
- Streamlined Procurement – Simplify your purchasing process with direct access to our products via OECM.
- Competitive Pricing – Enjoy cost savings through pre-negotiated agreements.
- Trusted Expertise – Work with a supplier that understands the needs of the education sector.
- Extensive Product Range – From everyday laboratory essentials to specialist equipment.
How to Buy
As part of our OECM agreement, Delta Scientific supports a wide range of laboratory and science needs, including:
1. Visit the OECM Laboratory and Science Supplies Marketplace.
2. Search for Delta Scientific within the supplier list.
3. Add Delta Scientific as a preferred vendor for your facility.
4. Start purchasing directly through OECM at preferential rates
Request a Copy of
Our OECM Contract
To access a copy of our OECM contract or learn more about how we
support educational facilities, please complete the form below.
A member of our team will follow up with the relevant
documentation and next steps.
Need Help?
If you’d like guidance on getting set up or want to discuss your institution’s specific needs, we’re here to help.
Call us: 905-629-4545. Contact us: info@delta-sci.com
