Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to reinforce plastic [title] Work in a well-ventilated area. [step] Fumes from melted plastic aren't something you want to breathe in. Open your doors and windows before you begin or work outdoors.

Ending1: For extra protection, be sure to wear a respirator mask. You can find them at any home improvement store. Ending2: If you work in a well-ventilated area, work with a furniture or workstation. [substeps] Use a rag or a plastic sheet to shield your work surface from some of the fumes. Ending3: Leaving the window open or perched outside may leave your room coated in smoke. [substeps] Wear breathing equipment to protect your lungs and eyes from the fumes. Ending4: You may want to wear work gloves or respiratory filters to ward off the fumes. [substeps] It can be easy to stop working if you smell smoke or another loud noise.

Answer format: ending1/ending2/ending3/ending4