Enespro® 40 cal PureView™ Replacement LensEnespro 40 cal PureView Replacement Lens Maintain peak visibility and full arc flash protection with the Enespro 40 cal PureView Replacement Lens. Scratches, fogging, and wear can compromise both your vision and your safety this genuine replacement lens restores your PureView hood to like new optical clarity and NFPA 70E Category 4 compliance, without replacing the entire hood assembly. Key Features 40 cal cm Arc Rating Meets NFPA 70E PPE Category 4