Technicians at RGF Environmental Group assemble Reme-Halo residential air purifiers at the RGF manufacturing plant in Riviera Beach on Friday, March 27, 2020. Since the global coronavirus outbreak, their sales are up 500 percent, and they have added a third shift in their Riviera Beach factory. [JOSEPH FORZANO/palmbeachpost.com]

A technician at RGF Environmental Group assembles a part of the Reme-Halo residential air purifier at the RGF manufacturing plant in Riviera Beach on Friday, March 27, 2020. Since the global coronavirus outbreak, their sales are up 500 percent, and they have added a third shift in their Riviera Beach factory. [JOSEPH FORZANO/palmbeachpost.com]

Technicians at RGF Environmental Group assemble Microcon Mobile Air Purification systems at the RGF manufacturing plant in Riviera Beach on Friday, March 27, 2020. Since the global coronavirus outbreak, their sales are up 500 percent, and they have added a third shift in their Riviera Beach factory. [JOSEPH FORZANO/palmbeachpost.com]

The control plate for the Microcon Mobile Air Purification systems at the RGF manufacturing plant in Riviera Beach on Friday, March 27, 2020. Since the global coronavirus outbreak, their sales are up 500 percent, and they have added a third shift in their Riviera Beach factory. [JOSEPH FORZANO/palmbeachpost.com]

A technician at RGF Environmental Group wires a ballast for the Microcon Mobile Air Purifier at the RGF manufacturing plant in Riviera Beach on Friday, March 27, 2020. Since the global coronavirus outbreak, their sales are up 500 percent, and they have added a third shift in their Riviera Beach factory. [JOSEPH FORZANO/palmbeachpost.com]

A view of one of the three RGF Environmental Group manufacturing plants in Riviera Beach on Friday, March 27, 2020. Since the global coronavirus outbreak, their sales are up 500 percent, and they have added a third shift in their Riviera Beach factory. [JOSEPH FORZANO/palmbeachpost.com]

Mat Charles, Vice President of the RGF Environmental Group Air Production Division, at the RGF manufacturing plant in Riviera Beach on Friday, March 27, 2020. Since the global coronavirus outbreak, their sales are up 500 percent, and they have added a third shift in their Riviera Beach factory. [JOSEPH FORZANO/palmbeachpost.com]

A Reme-Halo residential air purifier at the RGF manufacturing plant in Riviera Beach on Friday, March 27, 2020. Since the global coronavirus outbreak, their sales are up 500 percent, and they have added a third shift in their Riviera Beach factory. [JOSEPH FORZANO/palmbeachpost.com]

A technician at RGF Environmental Group assembles a part of the Reme-Halo residential air purifier at the RGF manufacturing plant in Riviera Beach on Friday, March 27, 2020. Since the global coronavirus outbreak, their sales are up 500 percent, and they have added a third shift in their Riviera Beach factory. [JOSEPH FORZANO/palmbeachpost.com]

A technician at RGF Environmental Group assembles a part of the Reme-Halo residential air purifier at the RGF manufacturing plant in Riviera Beach on Friday, March 27, 2020. Since the global coronavirus outbreak, their sales are up 500 percent, and they have added a third shift in their Riviera Beach factory. [JOSEPH FORZANO/palmbeachpost.com]

A new model, the Halo LED residential air purifier at the RGF manufacturing plant in Riviera Beach on Friday, March 27, 2020. Since the global coronavirus outbreak, their sales are up 500 percent, and they have added a third shift in their Riviera Beach factory. [JOSEPH FORZANO/palmbeachpost.com]

Ron Fink, President and CEO of RGF Environmental Group in Riviera Beach on Friday, March 27, 2020. Since the global coronavirus outbreak, their sales are up 500 percent, and they have added a third shift in their Riviera Beach factory. [JOSEPH FORZANO/palmbeachpost.com]

A warning sign on the gate of RGF Environmental Group in Riviera Beach on Friday, March 27, 2020. Since the global coronavirus outbreak, their sales are up 500 percent, and they have added a third shift in their Riviera Beach factory. [JOSEPH FORZANO/palmbeachpost.com]

RGF Environmental Group in Riviera Beach on Friday, March 27, 2020. Since the global coronavirus outbreak, their sales are up 500 percent, and they have added a third shift in their Riviera Beach factory. [JOSEPH FORZANO/palmbeachpost.com]