This job was a vacant house, off white nylon carpet in a Master Bedroom with pretty severe filtration lines along the walls. Carpet is vacuumed first.
Cleaned with my Chemstractor roto, using Releasit Encapsulating Detergent and Fiber Plus Pads followed by DirtGetter bonnets.

pic01 Before removing the register from the floor vent. Note filtration lines.

pic02 Shows the floor vent area with the register removed, prior to any cleaning.

pic03 Shows the floor vent with the register removed before applying the Releasit Encapsulating Detergent or anything else.

pic04 Shows the Releasit Encapsulating Detergent 50/50 mix, sprayed on with a quart trigger sprayer before brushing it in.

pic05 Shows after spraying with the 50/50 Releasit Encapsulating Detergent using the Standup Filtration and Grout Brush to work in.

pic06 Shows sfter applying the Releasit Encapsulating Detergent 50-50 mix and brushing with the Standup Filtration and Grout Brush.

pic07 Shows the floor vent area after going over it with the Fiber Plus Pads and DirtGetter bonnet.

pic08 Part of edges cleaned, part not cleaned. Doors lead to hallway.

pic09 Shows only the edges of the carpet cleaned. I always clean the edges of a room before cleaning the center.

pic10 Shows finished cleaning in the closet.

pic11 Half of the room cleaned with just the Fiber Plus Pads.

pic12 Shows the dirty Fiber Plus Pad and DirtGetter bonnet after same area of the carpet is fully cleaned.

pic13 Shows the finished room. All filtration lines at edges and soils in the center gone. Note how clean around floor vents, which were black before beginning.

pic14 Shows finished Master Bedroom using the Standup Filtration and Grout Brush. The filtration lines were sprayed first with Releasit Encapsulating Detergent, then brushed, then gone over with the Fiber Plus Pads, followed with the DirtGetter bonnets. Hall not yet done.

pic15 Shows finished cleaning Master Bedroom, first using the Fiber Plus Pads, then a DirtGetter bonnet. The towel was used for removing soil from the corners. Hallway not yet done.

pic16 Shows using the Chemstractor to clean stairs, with Releasit Encapsulating Detergent sprayed onto the carpet prior to running the Chemstractor and a Fiber Plus Pad over the area,.