fotos e vetores concentrando

Unhappy tired Asian student concentrated above has sad expression wears spectacles for vision correction holds folders papers stuck with paper clips isolated over blue background learns formulas

Stressed young afro american woman holding head in hands and feeling demotivated while sitting at her home office and working remotely on laptop. Depressed female student tired of onling learning

Happy millennial Latino female student in earphones sit at desk at home write take notes study online on laptop. Young Hispanic woman in headphones handwrite work distant on web on computer.

Isometric Home Medical Oxygen Concentrator. Concept of healthcare, life, pensioner. Senior man with Chronic obstructive pulmonary disease with supplemental oxygen

Thoughtful young 30s caucasian businessman in eyeglasses looking at computer screen, working distantly online at home office, solving problems, making difficult decision, freelance workday concept.

Head shot thoughtful young indian woman looking at computer screen. Focused millennial female college university student doing homework. Concentrated freelancer working remotely online at home.

Head shot pleasant happy young woman freelancer working on computer at home. Attractive businesswoman studying online, using laptop software, web surfing information or shopping in internet store.

Middle Age man has respiratory problem from covid-19 so wear Inhaler Oxygen mask all time for treatment. Elderly Senior Boss meeting on Internet, adjust Air Quantity of Oxygen Concentrator Portable

Japanese manga material: Concentrated line Thin type with thick line Horizontal oval space

Dialogue balloon comic concentrated line

Concentration Concept. Portrait of young woman holding fingers on temples, thinking hard, trying to concentrate, isolated over purple studio background. Lady doing breathing yoga practice

Concentrated young businessman in eyewear looking at laptop screen, web surfing information in internet or working distantly online at home office, communication remotely with client or study.

Male personage concentrated at working project, isolated man coding and programming looking at monitor. Screen with codes, developer at work with task. Cartoon character, vector in flat style

Hands in medical gloves hold out an oxygen mask against the background of the oxygen generator concentrator to deliver at low lung oxygen saturation for Covid-19 pneumonia. Focus on oxygen mask

Young girl practices yoga in the Lotus position. The concept of concentration, search for ideas, thought process, brainstorming, relaxation, break at the workplace. Vector illustration in a flat style

Thoughtful businessman think of online project looking at laptop at workplace, dreamy professional consider solution sit at work desk with computer, student search new idea inspiration in office cafe

Blonde beautiful young female has relaxation after long tiredsome work with papers and books, meditates at working place, tries to concentrate, has minute rest, isolated over white background.

Isometric Home Medical Oxygen Concentrator. Concept of healthcare, life, pensioner. Senior man with Chronic obstructive pulmonary disease with supplemental oxygen

Medical Device Individual Blue White portable oxygen cylinder to put gas for patients with respiratory disorders, woman hand try to plug in the rubber tube to tank

Aerial view of a circular geometric vertical beech wood plate. Concentric round beech wood plate light and shadow.